Tdata AD

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2007-04-19	SUPERIOR AIR PARTS, INC.: Amendment 39-14951. Docket No. FAA-2006-25948; Directorate Identifier 2006-NE-32-AD.

EFFECTIVE DATE

(a) This airworthiness directive (AD) becomes effective March 12, 2007.

AFFECTED ADS

(b) None.

APPLICABILITY

(c) This  AD  applies  to  Superior Air Parts, Inc.  (SAP), cast  cylinder
    assemblies, part numbers (P/Ns): SA47000L-A1, SA47000L-A20P,  SA47000S
    -A1, SA47000S-A20P,  SA47000S-A21P, SA52000-A1,  SA52000-A20P, SA52000
    -A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, SA55000-A20P  installed
    in  Teledyne  Continental  Motors  (TCM)  470,  520,  and  550  series
    reciprocating engines. These P/N cylinder assemblies may be  installed
    in the TCM engine models listed in the following Table 1.

            TABLE 1.--AFFECTED TELEDYNE CONTINENTAL ENGINE MODELS
    ______________________________________________________________________
    ENGINE MODEL
    ______________________________________________________________________
    O-470          -G, -K, -L, -M, -P, -R, -S, -U
    IO-470         -C, -D, -E, -F, -G, -H, -L, -M, -N, -P, -R, -S, -U, -V
    IO-520         -A, B, BA, C, CB, D, E, F, J, K, L, M, BB, MB
    TSIO-520       -AF, B, BB, C, CE, D, DB, E, EB, G, H, J, JB, K, KB, L,
                   LB, M, N, NB, P, R, T, UB, VB, WB
    IO-550         -A, B, C, D, E, F, L
    ______________________________________________________________________

These engine  models are  installed in,  but not  limited to, the aircraft
models listed in the following Table 2:

        TABLE 2.--TELEDYNE CONTINENTAL MOTORS-RELATED AIRCRAFT MODELS
    ______________________________________________________________________
    ENGINE MODEL      AIRCRAFT MANUFACTURER   AIRCRAFT MODEL DESIGNATION
    ______________________________________________________________________
    IO-470-C          Beechcraft              J, K, M35
    IO-470-C          Navion                  Navion
    IO-470-D          Cessna                  310 G & H
    IO-470-D          Rockwell                200 A, B, & C
    IO-470-E          Cessna                  210 & A
    IO-470-F          Bellanca                14-19-3
    IO-470-F          Cessna                  185
    IO-470-H          Navion                  Range Master
    IO-470-L          Beechcraft              B55 Baron
    IO-470-M          Gulfstream              500 A
    IO-470-N          Beechcraft              N & P
    IO-470-N          Beechcraft              G33
    IO-470-S          Cessna                  210 B & C
    IO-470-S          Cessna                  205
    IO-470-U          Cessna                  310 I & J
    IO-470-V/VO       Cessna                  310K, L, N, P & Q
    IO-520-A          Cessna                  210 D, E, F, G, & H
    IO-520-A          Cessna                  206
    IO-520-A          Cessna                  P206
    IO-520-A          Rockwell                200 D
    IO-520-B          Beechcraft              36 Bonanza
    IO-520-B          Beechcraft              A36
    IO-520-B          Navion                  Range Master
    IO-520-BA         Beechcraft              A36
    IO-520-BA         Beechcraft              S & V35, V35A, V35B
    IO-520-BA         Beechcraft              C33 A
    IO-520-BA         Beechcraft              E33 A & C
    IO-520-BA         Beechcraft              F33 A & C
    IO-520-BA         Navion                  Range Master
    IO-520-BB         Beechcraft              A36
    IO-520-BB         Beechcraft              V35B
    IO-520-BB         Beechcraft              F33 A
    IO-520-C & CB     Beechcraft              C55 - E55 Baron
    IO-520-D          Bellanca                17-30 Viking
    IO-520-D          Cessna                  A188-300 AG Truck
    IO-520-D          Cessna                  185
    IO-520-E          (Cessna 310)            Exec 600
    IO-520-E          (Beech Baron)           Pres 600
    IO-520-F          Cessna                  207
    IO-520-F          Cessna                  U206
    IO-520-K          Bellanca                17-30A
    IO-520-L          Cessna                  210 K, L, M, N & R
    IO-520-L          Cessna                  210N II
    IO-520-L          Cessna                  210R
    IO-520-M          Cessna                  310R
    IO-520-MB         Cessna                  310R
    IO-550-A          Cessna                  310 Conversion
    IO-550-B          Beechcraft              A36
    IO-550-B          (Beech Bonanza)         Foxstar
    IO-550-C          Beechcraft              58 Baron
    IO-550-D          Cessna                  185/188 Conversion
    IO-550-E          Cessna                  310 Conversion
    IO550-F           Cessna                  206/207 Conversion
    IO-550-L          Cessna                  210 Conversion
    O-470-M           Cessna                  310
    O-470-G           Beechcraft              H35
    O-470-K           Bellanca                14-19-2
    O-470-K           Cessna                  180 (230 HP)
    O-470-L           Cessna                  182
    O-470-L           Cessna                  180D
    O-470-M           Cessna                  310 B
    O-470-P           Navion                  Navion
    O-470-R           Cessna                  188-230
    O-470-R           Cessna                  182
    O-470-R           Cessna                  180 E-J
    O-470-S           Cessna                  182
    O-470-U           Cessna                  182
    O-470-U           Cessna                  180 K
    TSIO-520-AF       Cessna                  P210N II
    TSIO-520-B        Cessna                  320D, E & F
    TSIO-520-B        Cessna                  T310-Q & R
    TSIO-520-BB       Cessna                  T310R
    TSIO-520-BE       Piper                   PA-46-310 Malibu
    TSIO-520-C        Cessna                  T210 F, G, & H
    TSIO-520-C        Cessna                  TU206
    TSIO-520-C        Cessna                  TP206
    TSIO-520-C&CB     Beechcraft              58 Baron
    TSIO-520-CE       Cessna                  T210R
    TSIO-520-CF       Cessna                  P210R
    TSIO-520-D        Beechcraft              V35, V35A, V35B-TC
    TSIO-520-E        Cessna                  402, A & B
    TSIO-520-E        Cessna                  401, A & B
    TSIO-520-EB       Cessna                  335
    TSIO-520-G        Cessna                  T207
    TSIO-520-H        Cessna                  T210 J, K & L
    TSIO-520-J        Cessna                  210 J
    TSIO-520-J        Cessna                  414
    TSIO-520-J        Riley Conversions       340 Super Riley
    TSIO-520-L&LB     Beechcraft              58P Baron
    TSIO-520-L&LB     Beechcraft              58TC Baron
    TSIO-520-M        Cessna                  T207
    TSIO-520-M        Cessna                  TU206
    TSIO-520-N        Cessna                  414-II Chancellor
    TSIO-520-N        Cessna                  340
    TSIO-520-NB       Cessna                  414-II
    TSIO-520-NB       Cessna                  340
    TSIO-520-P        Cessna                  P210N
    TSIO-520-R        Cessna                  T210 M
    TSIO-520-R        Cessna                  T210N II
    TSIO-520-T        Cessna                  T188C AG Husky
    TSIO-520-UB       Beechcraft              A36TC Bonanza
    TSIO-520-UB       Beechcraft              B36TC
    TSIO-520-VB       Cessna                  402 C
    TSIO-520-WB       Beechcraft              58P Baron
    TSIO-520-WB       Beechcraft              58TC Baron
    ______________________________________________________________________

This AD also applies to  SAP, cast cylinder assemblies, P/Ns  SL32000W-A1,
SL32000W-A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH- A20P,  SL32006W-A1,
SL32006W-A20P,  SL32006W-A21P,  SL36000TW-A1,  SL36000TW-A20P,   SL36000TW
-A21P,   SL36000TW-A22P,   SL36000W-A1,   SL36000W-A20P,    SL36000W-A21P,
SL36006W-A1,  SL36006W-A20P,  and  SL36006W-A21P  installed  in   Lycoming
Engines  (LE) 320,  360,  and  540 series  reciprocating engines  and Avco
Lycoming 540 series reciprocating  engines. These P/N cylinder  assemblies
may be installed in  the LE and AL  engine models listed in  the following
Table 3.

      TABLE 3.--AFFECTED LYCOMING ENGINES AND AVCO LYCOMING ENGINE MODELS
    ______________________________________________________________________
            ENGINE MODEL
    ______________________________________________________________________
            O-320                       -A, -B, -C, -D, -E, H
            IO-320                      -B, -D, -E
            LIO-320                     -B
            AIO-320                     -A, -B, -C
            AEIO-320                    -D, -E
            O-360                       -A, -B, -C, -D, -F, -G, -J
            IO-360                      -B, -L, -M
            LO-360                      -A
            AEIO-360                    -B, -H
            HO-360                      -C
            HIO-360                     -B
            O-540                       -A, -B, -E, -F, -G, -H, -J
            IO-540                      -A, -C, -D, -N, -T, -V, -W
            AEIO-540                    -D
    ______________________________________________________________________

These engine  models are  installed in,  but not  limited to, the aircraft
models listed in the following Table 4:

     TABLE 4.--LYCOMING ENGINES AND AVCO LYCOMING-RELATED AIRCRAFT MODELS
    ______________________________________________________________________
    ENGINE MODEL        AIRCRAFT MANUFACTURER   AIRCRAFT MODEL DESIGNATION
    ______________________________________________________________________
    O-320-A             Mooney Aircraft         Mark 20A
    O-320-A1A           Piper Aircraft          PA-23-150 Apache
    O-320-A1A           Piper Aircraft          PA-22-150 Tri-Pacer
    O-320-A1A           Piper Aircraft          PA-22S-150 Tri-Pacer
    O-320-A1A           Piper Aircraft          PA-25 Pawnee
    O-320-A1A           Doyne Aircraft          Doyn-Cessna 170,170A,170B
    O-320-A1A           Dinfia                  Ranquel 1A-46
    O-320-A1A           Simmering-Graz Pauker   Flamingo SGP-M-222
    O-320-A1A           Aviamilano              Scricciolo P-19
    O-320-A1A           Vos Helicopter Co.      Spring Bok
    O-320-A1A           Mooney Aircraft         Mark 20A
    O-320-A1B           Piper Aircraft          PA-22-150 Tri-Pacer
    O-320-A1B           Piper Aircraft          PA-22S-150 Tri-Pacer
    O-320-A1B           Piper Aircraft          PA-23 Apache
    O-320-A1B           Doyne Aircraft          Doyn-Cessna 170,170A,170B
    O-320-A1B           S.O.C.A.T.A             Horizon (Gardan)
    O-320-A2A           Piper Aircraft          PA-22-150
    O-320-A2A           Piper Aircraft          PA-22S-150
    O-320-A2A           Piper Aircraft          Agriculture PA-18A-150
    O-320-A2A           Piper Aircraft          Super Cub PA-18-150
    O-320-A2A           Piper Aircraft          Caribbean PA-22-150
    O-320-A2A           Piper Aircraft          PA-25 Pawnee
    O-320-A2A           Lake Aircraft           Colonial C1
    O-320-A2A           Intermountain Mfg. Co.  Call Air Texas A-5, A-5T
    O-320-A2A           Rawdon Bros.            Rawdon T-1, T-15, T-15D
    O-320-A2A           Shinn Engineering       Shinn 2150-A
    O-320-A2A           Dinfia                  Ranquel 1A-46
    O-320-A2A           Neiva                   1PD-5802
    O-320-A2A           Sud                     Gardan-Horizon (GY-80)
    O-320-A2A           La Verda                Falco F8L Series II,
                                                America
    O-320-A2A           Malmo                   Vipan MF1-10
    O-320-A2A           Kingsford Smith         Autocrat SCRM-153
    O-320-A2B           Aero Commander          100
    O-320-A2B           Piper Aircraft          PA-22-150
    O-320-A2B           Piper Aircraft          PA-22S-150
    O-320-A2B           Piper Aircraft          Cherokee PA-28-150
    O-320-A2B           Piper Aircraft          Super Cub PA-18-150
    O-320-A2B           Champion Aircraft       Challenger 7GCA, 7GCB, 7KC
    O-320-A2B           Champion Aircraft       Citabria 7GCAA, 7GCRC
    O-320-A2B           Champion Aircraft       Agriculture 7GCBA
    O-320-A2B           Beagle                  Pup 150
    O-320-A2B           Arctic                  Interstate S1B2
    O-320-A2B           Robinson Helicopters    R-22
    O-320-A2C           Robinson Helicopters    R-22
    O-320-A2C           Varga                   Kachina 2150a
    O-320-A2C           Cicare                  Cicare AG
    O-320-A2D           Bellanca Aircraft       Citabria 150 (7GCAA)
    O-320-A2D           Bellanca Aircraft       Citabria 150S (7GCBC)
    O-320-A2D           Bellanca                Citabria 150S (7G(.HU)
    O-320-A2F           Cessna Aircraft         177A
    O-320-A3A           Piper Aircraft          Apache PA-23
    O-320-A3A           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-A3A           Corben-Fettes           Globe Special(Globe GC-1B)
    O-320-A3B           Piper Aircraft          Apache PA-23
    O-320-A3B           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-A3B           Teal II                 TSC 1A2
    O-320-B1A           Piper Aircraft          Apache PA-23-160
    O-320-B1A           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-B1A           Malmo                   Vipan MF1-10
    O-320-B1B           Piper Aircraft          Apache PA-23-160
    O-320-B1B           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-B2A           Piper Aircraft          PA-22-160
    O-320-B2A           Piper Aircraft          PA-22S-160
    O-320-B2B           Piper Aircraft          PA-22-160
    O-320-B2B           Piper Aircraft          PA-22S-160
    O-320-B2B           Beagle                  Airedale D5-160
    O-320-B2B           Fuji-Heavy Industries   Fuji F-200
    O-320-B2B           Uirapuru                Aerotec 122
    O-320-B2C           Robinson Helicopters    R22-HP, Alpha, Beta
    O-320-B2D           Maule                   MX-7-160
    O-320-B2E           Lycon
    O-320-B3A           Piper Aircraft          Apache PA-23-160
    O-320-B3A           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-B3B           Piper Aircraft          PA-23-160 Apache
    O-320-B3B           Doyn Aircraft           Doyn-Cessna 170, 170A,170B
    O-320-B3B           Sud                     Gardan (GY8O-160)
    O-320-C1A           Piper Aircraft          Apache PA-23-160
    O-320-C1A           Riley Aircraft          Rayjay (Apache)
    O-320-C1B           Piper Aircraft          Apache PA-23-160
    O-320-C3A           Piper Aircraft          Apache PA-23-160
    O-320-C3B           Piper Aircraft          Apache PA-23-160
    O-320-D1A           Sud                     Gardan (GY80)
    O-320-D1A           Gyroflug                Speed Cancard
    O-320-D1A           Grob                    G115
    O-320-D1D           Gulfstream              GA-7
    O-320-D1F           Slingsby                T67 Firefly
    O-320-D2A           Piper Aircraft          Cherokee PA-28S-160
    O-320-D2A           Robin                   Major DR400-140B
    O-320-D2A           Robin                   Chevalier DR-360, R-3140
    O-320-D2A           S.0.C.A.T.A.            Tampico TB9
    O-320-D2A           Slingsby                T67C Firefly
    O-320-D2A           Daetwyler               MD-3-160
    O-320-D2A           Nash Aircraft Ltd.      Petrel
    O-320-D2A           Aviolight               P66D Delta
    O-320-D2A           General Avia            Pinguino
    O-320-D2B           Beechcraft              Musketeer A23
    O-320-D2B           Piper Aircraft          Cherokee PA-28-160
    O-320-D2J           Cessna                  Skyhawk 172 P
    O-320-D3G           Piper Aircraft          Cadet PA-28-161
    O-320-D3G           Piper Aircraft          Warrior II
    O-320-E1A           Grob                    G115
    O-320-E1C           M.B.B. (Messerschmitt-  Monsun (BO-209-B)
                        Boelkow-Blohm)
    O-320-E1F           M.B.B.                  Monsun (BO-209-B)
    O-320-E2A           Piper Aircraft          Cherokee PA-28-140
    O-320-E2A           Piper Aircraft          Cherokee PA-28-150
    O-320-E2A           Robin                   Major (DR-340)
    O-320-E2A           Robin                   Sitar
    O-320-E2A           Robin                   Bagheera (GY-100-135)
    O-320-E2A           S.O.C.A.T.A.            Super Rallye (MS-886)
    O-320-E2A           S.O.C.A.T.A.            Rallye Commodore (MS-892)
    O-320-E2A           Siai-Marchetti          S-202
    O-320-E2A           F.F.A.                  Bravo (AS-202/15)
    O-320-E2A           Partenavia              Oscar (P66B)
    O-320-E2A           Partenavia              Bucker (131 APM)
    O-320-E2A           Aeromot                 Paulistina P-56
    O-320-E2A           Pezetel                 Koliber 150
    O-320-E2C           Beechcraft              Musketeer (B19)
    O-320-E2C           Beechcraft              Musketeer III (M-23111)
    O-320-E2C           M.B.B.                  Monsun (BO-209-B)
    O-320-E2D           Beechcraft              B19 Sport
    O-320-E2D           Cessna                  177
    O-320-E2D           Cessna                  172 I – M
    O-320-E2D           Piper Aircraft          PA-28-151
    O-320-E2D           Piper Aircraft          PA-28-140
    O-320-E2D           Cessna                  Cardinal (172.1, 177)
    O-320-E2F           M.B.B.                  Monsun (BO-209-B)
    O-320-E2F           M.B.B.                  Wassmer Pacific (WA-5 1)
    O-320-E2G           Gulfstream              AA5 Traveler
    O-320-E2G           Gulfstream              AA5A Cheetah
    O-320-E3D           Beechcraft              B19 Sport
    O-320-E3D           Piper Aircraft          Cherokee (140)
    O-320-H2AD          Cessna                  Skyhawk 172 N
    O-320-H2AD          Partenavia              P-66C
    O-320A2C            Varga                   Kachina 2150
    IO-320-B2A          Piper Aircraft          Twin Comanche (PA-30)
    IO-320-B1C          Hi
    IO-320-B1C          Shear
    IO-320-B1C          Wing
    IO-320-B1D          Ted Smith Aircraft      Aerostar
    IO-320-D1A          M.B.B.                  Monsun (BO-209-C)
    IO-320-D1B          M.B.B.                  Monsun (BO-209-C)
    IO-320-E1A          Champion                KCAB
    IO-320-E1A          M.B.B.                  Monsun (BO-209-C)
    IO-320-E1B          Bellanca Aircraft
    IO-320-E2A          Champion                7 KCAB
    IO-320-E2A          Champion Aircraft       Citabria
    IO-320-E2B          Bellanca Aircraft
    IO/LIO-320-B1A      Piper Aircraft          PA-30 Comanche (2)
    IO/LIO-320-B1A      Piper Aircraft          Twin Comanche (PA-39)
    AIO-320-Bl B        M.B.B.                  Monsun (BO-209-C)
    AEIO-320-D1B        Slingsby                T67M Firefly
    AEIO-320-D2B        Hundustan Aeronautlcs   HT-2
                        Ltd.
    AEIO-320-E1A        Bellanca Aircraft
    AEIO-320-E1A        Champion Aircraft
    AEIO-320-EIB        Bellanca Aircraft
    AEIO-320-EIB        Champion Aircraft       Decathalon (8KCAB-CS)
    AEIO-320-E2B        Bellanca Aircraft
    AEIO-320-E2B        Champion Aircraft       Decathalon (8KCAB)
    O-320-A1A           Riley Aircraft          Riley Twin
    O-360-A1A           Beechcraft              Travel Air (95, B-95)
    O-360-A1A           Piper Aircraft          Comanche (PA-24)
    O-360-A1A           Intermountain Mfg. Co.  Call Air (A-6)
    O-360-A1A           Lake Aircraft           Colonial (C-2, LA-4, 4A or
                                                4P)
    O-360-A1A           Doyn Aircraft           Doyn-Cessna (170B, 172,
                                                172A, 172B)
    O-360-A1A           Mooney Aircraft         Mark “20B” (M-20B)
    O-360-A1A           Earl Horton             Pawnee (Piper PA-25)
    O-360-A1A           Dinfia                  Ranquel (IA-51)
    O-360-A1A           Neiva                   (IPD-5901)
    O-360-A1A           Regente                 (N-591)
    O-360-A1A           Wassmer                 Super 4 (WA-50A)
    O-360-A1A           Wassmer                 Sancy (WA-40)
    O-360-A1A           Wassmer                 Baladou (WA-40)
    O-360-A1A           Wassmer                 Pariou (WA-40)
    O-360-A1A           Sud                     Gardan (GY-180)
    O-360-A1A           Bolkow                  (207)
    O-360-A1A           Partenavia              Oscar (P-66)
    O-360-A1A           Siai-Marchetti          (S-205)
    O-360-A1A           Procaer                 Picchio (F-15-A)
    O-360-A1A           S.A.A.B.                Safir (91-D)
    O-360-A1A           Malmo                   Vipan (MF-1OB)
    O-360-A1A           Aero Boero              AB-180
    O-360-A1A           Beagle                  Airedale (A-109)
    O-360-A1A           DeHavilland             Drover (DHA-3MK3)
    O-360-A1A           Kingsford-Smith         Bushmaster (J5-6)
    O-360-A1A           Aero Engine Service     Victa (R-2)
                        Ltd.
    O-360-A1AD          S.O.C.A.T.A.            Tabago TB-10
    O-360-A1D           Piper Aircraft          Comanche (PA-24)
    O-360-A1D           Lake Aircraft           Colonial (LA-4, 4A or 4P)
    O-360-A1D           Doyn Aircraft           Doyn-Beech (Beech 95)
    O-360-A1D           Mooney Aircraft         Master 21 (M-20E)
    O-360-A1D           Mooney Aircraft         Mark 20B, 20D,(M2OB, M2OC)
    O-360-A1D           Mooney Aircraft         Mooney Statesman (M-20G)
    O-360-A1D           Dinfia                  Querandi (IA-45)
    O-360-A1D           Wassmer                 (WA-50)
    O-360-A1D           Malmo                   Vipan (MFI-10)
    O-360-A1D           Cessna Aircraft         Skyhawk
    O-360-A1D           Doyn Aircraft           Doyn-Piper PA-23-160
    O-360-AIF6          Cessna Aircraft         Cardinal
    O-360-AIF6D         Cessna Aircraft         Cardinal 177
    O-360-AIF6D         Teal III                TSC (1A3)
    O-360-A1G6          Aero Commander
    O-360-A1G6D         Beech Aircraft          Duchess 76
    O-360-AIH6          Piper Aircraft          Seminole (PA-44)
    O-360-Al LD         Wassmer                 Europa WA-52
    O-360-AIP           Aviat
    O-360-AIP           Husky
    O-360-A2A           Center Est              Regente (DR-253)
                        Aeronautique
    O-360-A2A           S.O.C.A.T.A.            Rallye Commodore (MS-893)
    O-360-A2A           Societe Aeronautique    Mousquetaire (D-140)
                        Normande
    O-360-A2A           Bolkow                  Klemm (Kl -1 07C)
    O-360-A2A           Partenavia              Oscar (P-66)
    O-360-A2A           Beagle                  Husky (D5-180) (J1-U)
    O-360-A2D           Piper Aircraft          Comanche PA-24
    O-360-A2D           Piper Aircraft          Cherokee C PA-28-180
    O-360-A2D           Mooney Aircraft         Master 21 (M-20D)
    O-360-A2D           Mooney Aircraft         Mark 21 (M-20E)
    O-360-A2E           Std. Helicopter
    O-360-A2F           Aero Commander          Lark(100)
    O-360-A2F           Cessna Aircraft         Cardinal
    O-360-A2G           Beech Aircraft          Sport
    O-360-A3A           C.A.A.R.P.S.A.N.        (M-23111)
    O-360-A3A           Societe Aeronautique    Jodel (D-140C)
                        Normande
    O-360-A3A           Robin                   Regent (DR400/180)
    O-360-A3A           Robin                   Remorqueur (DR400/180R)
    O-360-A3A           Robin                   R-3170
    O-360-A3A           S.O.C.A.T.A.            Rallye 18OGT
    O-360-A3A           S.O.C.A.T.A.            Sportavia Sportsman(RS-180)
    O-360-A3A           Norman Aerospace Co.    NAC-1 Freelance
    O-360-A3A           Nash Aircraft Ltd.      Petre
    O-360-A3AD          S.O.C.A.T.A.            TB-l0
    O-360-A3AD          Robin                   Aiglon (R-l 180T)
    O-360-A4A           Piper Aircraft          Cherokee “D” PA-28-180
    O-360-A4D           Varga                   Kachina
    O-360-A4G           Beech Aircraft          Musketeer Custom III
    O-360-A4K           Grumman American        Tiger
    O-360-A4K           Beech Aircraft          Sundowner 180
    O-360-A4M           Piper Aircraft          Archer II PA-28-18
    O-360-A4M           Valmet                  PIK-23
    O-360-A4N           Cessna Aircraft         172 (Optional)
    O-360-A4P           Penn Yan                Super Cub Conversion
    O-360-A5AD          C. Itoh and Co.         Fuji FA-200
    O-360-B2C           Seabird Aviation        SB7L
    O-360-C1A           Intermountain Mfg. Co.  Call Air (A-6)
    O-360-CIE           Bellanca Aircraft       Scout (8GCBC-CS)
    O-360-C1F           Maule                   Star Rocket MX-7-180
    O-360-C1G           Christen                Husky (A-1)
    O-360-C2B           Hughes Tool Co.         (269A)
    O-360-C2D           Hughes Tool Co.         (269A)
    O-360-C2E           Hughes Tool Co.         YHO-2HU Military
    O-360-C2E           Bellanca Aircraft       Scout 8GCBC FP
    O-360-C4F           Maule                   MX-7-180A
    O-360-C4P           Penn Yan                Super Cub Conversion
    O-360-F1A6          Cessna Aircraft         Cutlass RG
    O-360-J2A           Robinson                R22
    IO-360-B1A          Beech Aircraft          Travel-Air (B-95A)
    IO-360-B1A          Doyn Aircraft           Doyn-Piper PA-23-200
    IO-360-B1B          Beech Aircraft          Travel-Air (B-95B)
    IO-360-B1B          Doyn Aircraft           Doyn-Piper PA-23-200
    IO-360-B1B          Fuji                    FA-200
    IO-360-B1D          United Consultants      See-Bee
    IO-360-BIE          Piper Aircraft          Arrow PA-28-180R
    IO-360-BIF          Utva                    75
    IO-360-B2E          C.A.A.R.P.              C.A.P. (10)
    IO-360-BIF6         Great Lakes             Trainer
    IO-360-B1G6         American Blimp          Spector 42
    IO-360-B2F6         Great Lakes             Trainer
    LO-360-A1 G6D       Beech Aircraft          Duchess
    LO-360-A1H6         Piper Aircraft          Seminole (PA-44)
    IO-360-EIA          T.R. Smith Aircraft     Aerostar
    IO-360-L2A          Cessna Aircraft         Skyhawk C-172
    IO-360-M1A          Diamond Aircraft        DA-40
    IO-360-M1B          Vans Aircraft           RV6, RV7, RV8
    IO-360-M1B          Lancair                 360
    AIO-360-B1B         Moravan                 Zim (Z-526-L)
    AEIO-360-B1G6       Great Lakes
    AEIO-360-B2F        Mundry                  CAP-10
    AEIO-360-B4A        Pitts                   S-1S
    AEIO-360-HIA        Bellanca Aircraft       Super Decathalon
                                                (8KCAB-180)
    AEIO-360-HIB        American Champion       Super Decathalon
    HO-360-B1A          Hughes Tool Co.         269A
    HO-360-B1B          Hughes Tool Co.         269A
    HO-360-C1A          Schweizer               300C
    HIO-360-A1A         Hughes Tool Co.         300
    H1O-360-A1B         Silvercraft
    HIO-360-B1A         Hughes Tool Co.         Military 269-A-1
    HlO-360-BIB         Hughes Tool Co.         269A
    HIO-360-D1A         Hughes Tool Co.         269C, 300C
    HIO-360-D1A         Schweizer               300C
    HIO-360-E1AD        Enstrom Helicopter      F28C
    HIO-360-E1BD        Enstrom Helicopter      F28C
    HIO-360-F1AD        Enstrom Helicopter      Faicon F28F
    HIO-360-F1AD        Enstrom Helicopter      Shark 280FX
    HIO-360-F1AD        Enstrom Helicopter      Sentine F28F-P
    HIO-360-G1A         Schweizer               CB
    LHIO-360-C1A        Silvercraft             SH-4 Helicopter
    LHIO-360-C1B        Silvercraft             SH-3 Helicopter
    O-540-AIA           Rhein-Flugzeugbau       RF-1
    O-540-AIA5          Piper Aircraft          Comanche PA-24-150
    O-540-AIA5          Helio                   Military H-250
    O-540-AIA5          Yoeman Aviation         YA-1
    O-540-A1B5          Piper Aircraft          Aztec PA-23-250
    O-540-A1B5          Piper Aircraft          Comanche PA-24-250
    O-540-AIC5          Piper Aircraft          Comanche PA-24-250
    O-540-A1D           Found Bros.             FBA-2C
    O-540-A1D           Dornier                 DO-28-B1
    O-540-AID5          Piper Aircraft          Aztec PA-23 -250
    O-540-AID5          Piper Aircraft          Comanche PA-24-250
    O-540-AID5          Piper Aircraft          Military Aztec U-1 1A
    O-540-AID5          Dornier                 DO-28
    O-540-A2B           Aero Commander          500
    O-540-A2B           Mld-States Mfg. Co.     Twin Courier 11-500, U-5
    O-540-A3D5          Piper Aircraft          Navy Aztec PA-23-250
    O-540-B1A5          Piper Aircraft          Apache PA-23-235
    O-540-BIB5          Piper Aircraft          Cherokee PA-24-250
    O-540-BIB5          Doyn Aircraft           Doyn-Piper PA-24-250
    O-540-BID5          Wassmer                 WA-421
    O-540-B2B5          Piper Aircraft          Pawnee PA-24-235
    O-540-B2B5          Piper Aircraft          Cherokee PA-28-235
    O-540-B2B5          Piper Aircraft          Aztec PA-23-235
    O-540-B2B5          Intermountain Mfg. Co.  Call Air A-9
    O-540-B2B5          Rawdon Bros.            Rawdon T-l
    O-540-B2B5          S.O.C.A.T.A.            Rallye 235CA
    O-540-B2C5          Piper Aircraft          Pawnee PA-24-235
    O-540-B4B5          Piper Aircraft          Cherokee PA-28-235
    O-540-B4B5          Embraer                 Corioca EMB-710
    O-540-B4B5          S.O.C.A.T.A.            Rallye 235GT
    O-540-B4B5          S.O.C.A.T.A.            Rallye 235C
    O-540-B4B5          Maule                   Star Rocket MX-7-235
    O-540-B4B5          Maule                   Super Rocket M-6-235
    O-540-B4B5          Maule                   Super Std. Rocket M-7-235
    O-540-E4A5          Piper Aircraft          Comanche PA-24-260
    O-540-E4A5          Aviamilano              Flamingo F-250
    O-540-E4A5          Siai-Marcbetti          SF-260, SF-208
    O-540-E4B5          Britten-Norman          BN-2
                        Piper Aircraft          Cherokee Six PA-32-260
    O-540-E4C5          Pilatus Britten-Norman  Islander BN-2A-26
    O-540-E4C5          Pilatus Britten-Norman  Islander BN-2A-27
    O-540-E4C5          Pilatus Britten-Norman  Islander II BN-2B-26
    O-540-E4C5          Pilatus Britten-Norman  Islander BN-2A-2 1
    O-540-E4C5          Pilatus Britten-Norman  Trislander BN-2A-Mark
                                                111-2
    O-540-F1B5          Omega Aircraft          BS-12D1
    O-540-F1B5          Robinson                R-44
    O-540-G1A5          Piper Aircraft          Pawnee PA-25-260
    O-540-H1B5D         Aero Boero              260
    O-540-H2A5          Embraer                 Impanema “AG”
    O-540-H2A5          Gippsland               GA-200
    O-540-H2B5D         Aero Boero              260
    O-540-J1A5D         Maule                   Star Rocket MX-7-235
    O-540-J1A5D         Maule                   Super Rocket M-6-235
    O-540-J1A5D         Maule                   Super Std. Rocket M-7-235
    O-540-J3A5          Robin                   R-3000/235
    O-540-J3A5D         Piper Aircraft          Dakota PA-28-236
    O-540-J3C5D         Cessna Aircraft         Skylane RG
    IO-540-A1A5         Doyn Aircraft           Doyn-Piper PA-23-250
    IO-540-A1A5         Riley Aircraft          Rocket-Cessna 310
    IO-540-A1A5         Dornier                 DO-8-B 1
    IO-540-A1A5         Siai-Marchetti
    IO-540-C1B5         Piper Aircraft          Aztec B PA-23-250
    IO-540-C1B5         Piper Aircraft          Comanche PA-24-250
    IO-540-C1C5         Riley Aircraft          Turbo-Rocket
    IO-540-C4B5         Piper Aircraft          Aztec C PA-23-250
    IO-540-C4B5         Piper Aircraft          Aztec F
    IO-540-C4B5         Wassmer                 WA4-2 1
    IO-540-C4B5         Avions Pierre Robin     HR 100/250
    IO-540-C4B5         Bellanca Aircraft       Aries T-250
    IO-540-C4B5         Aerofab                 Renegade 250
    IO-540-C4D5         S.O.C.A.T.A.            TB-20
    IO-540-C4DSD        S.O.C.A.T.A.            Trinidad TB-20
    IO-540-D4A5         Piper Aircraft          Comanche PA-24-260
    IO-540-D4A5         Siai-Marchetti          SF-260
    IO-540-D4B5         Cerva                   CE-43 Guepard
    IO-540-E1A5         Aero Commander          500-E
    IO-540-EIB5         Aero Commander          500-U
    IO-540-EIB5         Shrike                  500-S
    IO-540-EIB5         Poeschel                P-300
    IO-540-GIA5         Doyn Aircraft           Doyn-Piper PA-23-250
    IO-540-GIA5         Riley Aircraft          Turbo-Aztec
    IO-540-GIA5         DeHavilland             Heron Conversion
    IO-540-GIB5         T.R. Smith Aircraft     Aerostar 600
    IO-540-GIB5         Found Bros.             Centennial 100
    IO-540-G1C5         Intermountain Mfg. Co.  Call Air 1AR821
    IO-540-G1DS         Intermountain Mfg. Co.  IAR-822, IAR-826, IAR-823
    IO-540-G1F5         Bellanca Aircraft
    IO-540-N lA5        Piper Aircraft          Comanche 260
    IO-540-T4A5D        General Aviation        Model 114
    IO-540-T4B5         Commander               114B
    IO-540-T4B5D        Rockwell                114
    IO-540-T4C5D        Lake Aircraft           Seawolf
    IO-540-WIA5         Maule                   MX-7-235, MT-7-235, M7235
    IO-540-W1A5D        Maule                   Star Rocket MX-7-235
    IO-540-W1A5D        Maule                   Super Rocket M-6-235
    IO-540-W1A5D        Maule                   Super Std. Rocket M-7-235
    IO-540-W3A5D        Schweizer               Power Glider
    IO-540-AB1A5        Cessna Aircraft         Skylane C-182
    AEIO-540-D4A5       Christen                Pitts S-2S, S-2B
    AEIO-540-D4A5       Siai-Marchetti          SF-260
    AEIO-540-D4A5       H.A.L.                  HPT-32
    AEIO-540-D4A5       Slingsby                Firefly T3A
    AEIO-540-D4B5       Moravan                 Zlin-50L
    AEIO-540-D4B5       H.A.L.                  HPT-32
    AEIO-540-D4D5       Burkhart Grob           Grob G, 1 15T Aero
    ______________________________________________________________________

These  engine models  are known  to be  installed in  the aircraft  models
listed in the following Table 5.
    ______________________________________________________________________
    ENGINE MODEL      AIRCRAFT MANUFACTURER     AIRCRAFT MODEL DESIGNATION
    ______________________________________________________________________
    O-360-A3A2          American Champion            7GCBC & 7GCAA
    ______________________________________________________________________

UNSAFE CONDITION

(d) This  AD results  from the  discovery of  nine separated  SAP cylinder
    assemblies installed  in TCM  470, 520,  and 550  series reciprocating
    engines and one separated SAP  cylinder assembly installed in LE  320,
    360, and 540 series reciprocating  engines. We are issuing this  AD to
    prevent  cylinder  separation  that  can  lead  to  engine  failure, a
    possible engine compartment fire, and damage to the airplane.

COMPLIANCE

(e) You  are responsible  for  having the  actions  required  by  this  AD
    performed within  the compliance  times specified  unless the  actions
    have already been done.

DETERMINING WHICH CAST CYLINDER ASSEMBLIES ARE INSTALLED

(f) If  aircraft engine  records  do not  list  the P/N  of  the  cylinder
    installed  during  engine  overhaul or  repair,  visually  inspect the
    cylinders.  The  affected  SAP  cylinder  head  flanges  are   marked:
    SA47000L-A1, SA47000L-A20P, SA47000S-A1, SA47000S-A20P, SA47000S-A21P,
    SA52000-A1,  SA52000-A20P,  SA52000-A21P,  SA52000-A22P, SA52000-A23P,
    SA55000-A1, or  SA55000-A20P or  SL32000W-A1, SL32000W-A20P,  SL32000W
    -A21P,  SL32000WH-A1,   SL32000WH-A20P,  SL32006W-A1,   SL32006W-A20P,
    SL32006W-A21P,    SL36000TW-A1,    SL36000TW-A20P,     SL36000TW-A21P,
    SL36000TW-A22P, SL36000W-A1,  SL36000W-A20P,  SL36000W-A21P,  SL36006W
    -A1, SL36006W-A20P, or SL36006W-A21P.

CYLINDER ASSEMBLY REMOVAL

(g) Remove  all cylinder  assemblies with  a serial  number of  47LE053559
    through 47LF053643,  or 47SE054212  through 47SF054251,  or 52D0531708
    through  52H0532197,  or  55E05223  through  55G05289,  or  32WE059006
    through 32WF059067, or  32WHE05379 through 32WHE05392,  or 326WF055517
    through 326WF055532, or  36TWF05430 through 36TWG05453,  or 36WF058058
    through 36WJ058182, or 366WE056944  through 366WL058131 no later  than
    150  hours  total  time-in-service  (TIS)  to  preclude  cylinder head
    fatigue  failure  and   separation  at  the   head-to-barrel  threaded
    interface.

(h) For  cylinder assemblies  with more  than 150  hours total  TIS on the
    effective date of this  AD, a 10 hour  TIS extension is permitted  for
    the purpose  of flying  the aircraft  to a  location where maintenance
    action can be done to meet the requirements of this AD.

(i) After  the effective  date of  this AD,  do not  install any  cylinder
    assemblies with P/Ns SA47000L-A1, SA47000L-A20P, SA47000S-A1, SA47000S
    -A20P, SA47000S-A21P, SA52000-A1, SA52000-A20P, SA52000-A21P,  SA52000
    -A22P,  SA52000-A23P,  SA55000-A1,  or  SA55000-A20P,or   SL32000W-A1,
    SL32000W -A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-A20P,  SL32006W
    -A1,  SL32006W-A20P,   SL32006W-A21P,  SL36000TW-A1,   SL36000TW-A20P,
    SL36000TW -A21P, SL36000TW-A22P, SL36000W-A1, SL36000W-A20P,  SL36000W
    -A21P,  SL36006W-A1, SL36006W-A20P,  or SL36006W-A21P,  with a  serial
    number  of  47LE053559  through  47LF053643,  or  47SE054212   through
    47SF054251,  or  52D0531708 through  52H0532197,  or 55E05223  through
    55G05289,  or  32WE059006 through  32WF059067,  or 32WHE05379  through
    32WHE05392, or 326WF055517 through 326WF055532, or 36TWF05430  through
    36TWG05453, or 36WF058058  through 36WJ058182, or  366WE056944 through
    366WL058131 into any engine.

ALTERNATIVE METHODS OF COMPLIANCE

(j) The   Manager,   Special   Certification   Office,   FAA,   Rotorcraft
    Directorate,  has  the  authority to  approve  alternative  methods of
    compliance for this AD if  requested using the procedures found  in 14
    CFR 39.19.

SPECIAL FLIGHT PERMITS

(k) For aircraft with  engines that have between  140 hours and 150  hours
    TIS only, special flight permits may be issued in accordance with Sec.
    Sec. 21.197  and 21.199  of the  Federal Aviation  Regulations (14 CFR
    21.197 and  21.199) to  operate the  aircraft to  a location where the
    requirements of this AD can be done. Special flight permits may not be
    issued for aircraft that have utilized the provisions of paragraph (h)
    of this AD.

RELATED INFORMATION

(l) Superior Air  Parts, Inc. Mandatory  Service Bulletin B06-01,  Rev. E,
    dated January 24, 2007, contains information related to the subject of
    this AD.

(m) Contact Jurgen  Priester, Aerospace  Engineer,  Special  Certification
    Office, FAA, Rotorcraft Directorate, Southwest Regional  Headquarters,
    2601    Meacham   Blvd.,    Fort   Worth,    Texas   76137;    e-mail:
    jurgen.priester@faa.gov; telephone (817) 222-5159; fax (817)  222-5785
    for more information about this AD.

MATERIAL INCORPORATED BY REFERENCE

(n) None.

Issued in Burlington, Massachusetts, on February 13, 2007. Peter A. White,
Acting Manager, Engine  and Propeller Directorate,  Aircraft Certification
Service.

FOR  FURTHER  INFORMATION CONTACT:  Jurgen  Priester, Aerospace  Engineer,
Special  Certification  Office,  FAA,  Rotorcraft  Directorate,  Southwest
Regional  Headquarters,  2601  Meacham  Blvd.,  Fort  Worth,  Texas 76137;
telephone (817) 222-5159; fax (817) 222-5785.

PREAMBLE

AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).

ACTION: Final rule; request for comments.

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain SAP cast cylinder assemblies installed in Teledyne Continental Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming Engines (LE) 320, 360, and 540 series reciprocating engines, Avco Lycoming (AL) 540 series reciprocating engines, and Superior Air Parts, Inc. (SAP) 360 series reciprocating engines. This AD requires removing from service certain SAP part numbered (P/N) cast cylinder assemblies installed in TCM, LE, and AL reciprocating engines. This AD also requires removing from service certain cast cylinder assemblies installed as original equipment in SAP reciprocating engines, or in certain overhauled or repaired SAP reciprocating engines. This AD results from nine separated SAP cylinder assemblies in TCM reciprocating engines and one in LE reciprocating engines. We are issuing this AD to prevent cylinder separation that can lead to engine failure, a possible engine compartment fire, and damage to the airplane.

DATES: This AD becomes effective March 12, 2007.

We must receive any comments on this AD by April 24, 2007.

ADDRESSES: Use one of the following addresses to comment on this AD:

DOT Docket Web site: Go to http://dms.dot.gov and follow the instructions for sending your comments electronically.

Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your comments electronically.
Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0001.

Fax: (202) 493-2251.

Hand Delivery: Room PL-401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: Jurgen Priester, Aerospace Engineer, Special Certification Office, FAA, Rotorcraft Directorate, Southwest Regional Headquarters, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5159; fax (817) 222-5785.

SUPPLEMENTARY INFORMATION: SAP informed the FAA on July 12, 2006, that at least nine SAP cylinder assemblies installed in TCM 470, 520, and 550 series reciprocating engines and one installed in LE 320, 360, and 540 series reciprocating engines had separated at the cylinder head-to- barrel threaded interface because SAP omitted a heat treat process step during cylinder barrel manufacture. This omission resulted in higher stresses in the cylinder head-to-barrel threaded interface, leading to fatigue cracking and cylinder head separation. The lowest time-in- service (TIS) for a cylinder assembly known to have separated from this defect is 202 hours TIS. SAP isolated this defect to a specific production lot of 1,354 barrel forgings used as original equipment on SAP O-360 engines and in SAP PMA cylinder assemblies as replacement parts for various TCM, LE, and AL engine models. This AD addresses the barrels used in SAP PMA cylinders installed in the engines listed below.

Cylinder Assembly Eligibility

Series Engines P/N Cylinder Assemblies

TCM 470, 520, and 550 SA47000L-A1, SA47000L-A20P, SA47000S-A1, SA47000S-A20P, SA47000S-A21P, SA52000-A1, SA52000-A20P, SA52000-A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, or SA55000-A20P

LE 320, 360, and 540 and AL IGO 540 SL32000W-A1, SL32000W-A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-A20P, SL32006W-A1, SL32006W-A20P, SL32006W-A21P, SL36000TW-A1, SL36000TW-A20P, SL36000TW-A21P, SL36000TW-A22P, SL36000W-A1, SL36000W-A20P, SL36000W-A21P, SL36006W-A1, SL36006W-A20P, or SL36006W-A21P

SAP 360 SL36006W-A20P

FAA's Determination and Requirements of This AD

The unsafe condition described previously is likely to exist or develop on other TCM 470, 520, and 550; LE 320, 360, and 540; AL 540, and SAP 360 series reciprocating engines of the same type design with SAP cast cylinder assemblies that have as original equipment, or have been overhauled or repaired using SAP part numbers listed in the table above. For that reason, we are issuing this AD to prevent cylinder separation which can lead to engine failure, a possible engine compartment fire, and damage to the airplane. This AD requires removing from service installed SAP cast cylinder assemblies listed in the table above, no later than 150 hours total TIS to preclude cylinder head fatigue failure and separation at the head-to-barrel threaded interface.

FAA's Determination of the Effective Date

Since an unsafe condition exists that requires the immediate adoption of this AD, we have found that notice and opportunity for public comment before issuing this AD are impracticable, and that good cause exists for making this amendment effective in less than 30 days.

Comments Invited

This AD is a final rule that involves requirements affecting flight safety and was not preceded by notice and an opportunity for public comment; however, we invite you to send us any written relevant data, views, or arguments regarding this AD. Send your comments to an address listed under ADDRESSES. Include "AD Docket No. FAA-2006-25948; Directorate Identifier 2006-NE-32-AD'' in the subject line of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the rule that might suggest a need to modify it.

We will post all comments we receive, without change, to http://dms.dot.gov , including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this AD. Using the search function of the DMS Web site, anyone can find and read the comments in any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You may review the DOT's complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477-78) or you may visit http://dms.dot.gov.

Examining the AD Docket

You may examine the docket that contains the AD, any comments received, and any final disposition in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Office (telephone (800) 647-5227) is located on the plaza level of the Department of Transportation Nassif Building at the street address stated in ADDRESSES. Comments will be available in the AD docket shortly after the DMS receives them.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, Section 106, describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the Agency's authority.

We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701, "General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

Regulatory Findings

We have determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify that this AD:

1. Is not a "significant regulatory action'' under Executive Order 12866;

2. Is not a "significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and

3. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

We prepared a summary of the costs to comply with this AD and placed it in the AD Docket. You may get a copy of this summary at the address listed under ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Safety.

Adoption of the Amendment

Under the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive: