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2006-18-15 HARTZELL PROPELLER INC.: 
Amendment 39-14754. Docket No. FAA-2006-25244; Directorate Identifier 2006-NE-25-AD.
EFFECTIVE DATE

(a) This  airworthiness  directive (AD)  becomes  effective  September 25,
    2006.

AFFECTED ADS

(b) None.

APPLICABILITY

(c) This AD applies to Hartzell  Propeller Inc. ( )HC-( )2Y( )-(  ) series
    propellers with non-suffix serial number (SN) propeller hubs installed
    on Lycoming O-, IO-,  LO-, and AEIO-360 series  reciprocating engines.
    These propellers and  engines could be  installed on, but  not limited
    to:
    ______________________________________________________________________
    O-360-A1A       Piper Aircraft      Comanche (PA-24)
                    Lake Aircraft       Colonial (C-2, LA -4, 4A, or 4P)
                    Mooney Aircraft     Mark "20B" (M-20B)
                    Earl Horton         Pawnee (Piper PA-25)
                    Partenavia          Oscar (P-66)
                    Siai-Marchetti      (S-205)
                    Procaer             Picchio (F-15-A)
                    S.A.A.B.            Safir (91-D)
                    Malmo               Vipan (MF-10B)
                    Aero Boero          AB-180
                    Beagle              Airedale (A-109)
                    DeHavilland         Drover (DHA-3MK3)
                    Kingsford-Smith     Bushmaster (J5-6)

    O-360-A1AD      S.O.C.A.T.A.        Tabago TB-10

    O-360-A1D       Piper Aircraft      Comanche (PA-24)
                    Lake Aircraft       Colonial (LA -4, 4A, or 4P)
                    Doyn Aircraft       Doyn-Beech (Beech 95)
                    Mooney Aircraft     Master "21" (M-20E), Mark "20B",
                                        "20D", (M20B, M20C), Mooney
                                        Statesman (M-20G)

    O-360-A1F6      Cessna Aircraft     Cardinal

    O-360-A1F6D     Cessna Aircraft     Cardinal 177

    O-360-A1G6      Teal III, Aero      TSC (1A3)
                    Commander

    O-360-A1G6D     Beech Aircraft      Duchess 76

    O-360-A1H6      Piper Aircraft      Seminole (PA-44)

    O-360-A1P       Aviat               Husky

    O-360-A2A       Avion Jodel         D-140-B
                    S.O.C.A.T.A.        Rallye Commodore (MS-893)
                    Partenavia          Oscar (P-66)
                    Beagle              Husky (D5-180) (J1-U)

    O-360-A2D       Piper Aircraft      Comanche (PA-24), Cherokee "C"
                                        (PA-28 "180")
                    Mooney Aircraft     Master "21" (M-20D), Mark "21"
                                        (M-20E)

    O-360-A2F       Dynac Aerospace     Aero Commander Model 100
                    Corp

    O-360-A2G       Beech Aircraft      Sport

    O-360-A3A       C.A.A.R.P.S.A.N.    (M-23III)
                    Robin               Regent (DR400/180), Remorqueur
                                        (DR400/180R), R-3170
                    S.O.C.A.T.A.        Rallye 180GT, Sportavia Sportsman
                                        (RS-180)
                    Norman Aeroplace    NAC-1 Freelance
                    Co.
                    Nash Aircraft Ltd.  Petrel

    O-360-A3AD      S.O.C.A.T.A.        TB-10
                    Robin               Aiglon (R-1180T)

    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
                    Beech Aircraft      Sundowner 180

    O-360-A4M       Piper Aircraft      Archer II (PA-28 "18")
                    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.  Call Air (A-6)
                    Co.

    O-360-C1E       Bellanca Aircraft   Scout (8GCBC-CS)

    O-360-C1F       Maule               Star Rocket MX-7-180

    O-360-C1G       Christen            Husky (A-1)

    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)
                    Doyn Aircraft       Doyn-Piper (PA -23 "200")

    IO-360-B1B      Beech Aircraft      Travel-Air (B-95B)
                    Doyn Aircraft       Doyn-Piper (PA -23 "200")
                    Fuji                (FA-200)

    IO-360-B1D      United Consultants  See-Bee

    IO-360-B1E      Piper Aircraft      Arrow (PA-28 "180R")

    IO-360-B1F      Utva                75

    IO-360-B2E      C.A.A.R.P.          C.A.P. (10)

    IO-360-B1F6     Great Lakes         Trainer

    IO-360-B1G6     American Blimp      Spector 42

    IO-360-B2F6     Great Lakes         Trainer

    LO-360-A1G6D    Beech Aircraft      Duchess

    LO-360-A1H6     Piper Aircraft      Seminole (PA-44)

    IO-360-E1A      T.R. Smith          Aerostar
                    Aircraft

    IO-360-M1A      Diamond Aircraft    DA-40

    IO-360-M1B      Vans Aircraft       RV6, RV7, RV8
                    Lancair             360

    AEIO-360-B1F    F.F.A.              Bravo (200)
                    Grob                G115/Sport-Acro

    AEIO-360-B1G6   Great Lakes

    AEIO-360-B2F    Mundry              CAP-10

    AEIO-360-B4A    Pitts               S-1S

    AEIO-360-H1A    Bellanca Aircraft   Super Decathalon (8KCAB-180)

    AEIO-360-H1B    American Champion   Super Decathalon
    ______________________________________________________________________

(d) The parentheses appearing in the propeller model number indicates  the
    presence or absence of an  additional letter(s) that varies the  basic
    propeller model.  This AD  still applies  regardless of  whether these
    letters are present or absent in the propeller model designation.

PROPELLERS NOT AFFECTED BY THIS AD

(e) Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) series propellers installed
    on  the  following aircraft  are  not affected  by  this AD,  but  are
    affected by AD 2001-23-08 which addresses the same unsafe condition:

(1) Aerobatic  aircraft   (including  certificated   aerobatic   aircraft,
    military  trainers, or  any  aircraft  routinely exposed  to aerobatic
    usage).

(2) Agricultural aircraft.

(3) Piper PA-32( ) series aircraft with Lycoming 540 series  reciprocating
    engines rated at 300 HP or higher.

(4) Britten  Norman BN-2(  )  series  aircraft  with  Lycoming 540  series
    reciprocating engines.

UNSAFE CONDITION

(f) This AD results from a  report of a propeller blade separating  from a
    propeller  hub. We  are issuing  this AD  to  prevent  failure of  the
    propeller hub causing blade separation and subsequent loss of airplane
    control. We are  issuing this AD  to prevent failure  of the propeller
    hub causing blade separation and subsequent loss of airplane control.

COMPLIANCE

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

INITIAL PROPELLER HUB EDDY CURRENT INSPECTION (ECI)

(h) Within 50  operating hours time-in-service  (TIS) after the  effective
    date of this AD, perform an initial ECI of the front cylinder half  of
    the propeller hub for cracks.

(i) Use  paragraphs  3.A.   through  3.A.(4)(g)  of   the   Accomplishment
    Instructions of Hartzell Propeller Inc. Service Bulletin (SB) HC-SB-61
    -269, dated April 18, 2005, to perform the ECI inspection.

(j) If any cracks are found, remove the propeller hub from service  before
    further flight.

(k) If no cracks are found, mark the propeller using paragraph  3.A.(6)(a)
    of the Accomplishment Instructions of Hartzell Propeller Inc.  Service
    Bulletin  (SB)  HC-SB-61-269,  dated  April  18,  2005,  to   indicate
    compliance with Hartzell Propeller  Inc. SB HC-SB-61-269, dated  April
    18, 2005.

REPETITIVE PROPELLER HUB ECIS

(l) Within every 100 operating hours TIS after the last propeller hub  ECI
    inspection, or  at every  annual inspection,  whichever occurs  first,
    perform repetitive ECIs  of the front  cylinder half of  the propeller
    hub for cracks.

(m) If any cracks are found, remove the propeller hub from service  before
    further flight.

OPTIONAL TERMINATING ACTION

(n) As optional terminating action to the repetitive ECIs required by this
    AD:

(1) Replace  the  non-suffix  SN  propeller  hub  with   a  propeller  hub
    identified by an  "A" or "B"  suffix letter in  the propeller hub  SN;
    except

(2) Do  not  install  a  suffix  "A"  propeller  hub  that was  previously
    installed  on an  aircraft affected  by  the  original issue  or later
    revision of Hartzell Propeller Inc. SB HC-SB-61-227.

(3) Replacement propeller hub part numbers can be found in paragraph 2.A.,
    Material  Information,  of Hartzell  Propeller  Inc. SB  HC-SB-61-269,
    dated April 18, 2005.

ALTERNATIVE METHODS OF COMPLIANCE

(o) The Manager, Chicago Aircraft Certification Office, has the  authority
    to approve alternative methods of compliance for this AD if  requested
    using the procedures found in 14 CFR 39.19.

RELATED INFORMATION

(p) Hartzell Propeller Inc. SB  HC-SB-61-227, Revision 2, dated April  18,
    2005, and AD 2001-23-08 pertain to the subject of this AD.

MATERIAL INCORPORATED BY REFERENCE

(q) You must  use  Hartzell  Propeller Inc. Service Bulletin HC-SB-61-269,
    dated April 18, 2005, to perform the ECI inspections required by  this
    AD. The Director of the Federal Register approved the incorporation by
    reference of this service bulletin in accordance with 5 U.S.C.  552(a)
    and  1  CFR  part  51.  Contact  Hartzell  Propeller  Inc.   Technical
    Publications  Department,  One  Propeller  Place,  Piqua,  OH   45356;
    telephone (937)  778-4200;  fax (937)  778-4391,  for  a copy  of this
    service information.  You may  review copies  at the  FAA, New England
    Region, Office of the Regional Counsel, 12 New England Executive Park,
    Burlington, MA; or at the National Archives and Records Administration
    (NARA). For information on the availability of this material at  NARA,
    call 202-741-6030, or go to:
    http://www.archives.gov/federal-register/cfr/ibr-locations.html.

Issued  in  Burlington,  Massachusetts, on  August  30,  2006. Francis  A.
Favara, Manager, Engine and Propeller Directorate, Aircraft  Certification
Service.

FOR FURTHER  INFORMATION CONTACT:  Tim Smyth,  Aerospace Engineer, Chicago
Aircraft Certification Office, FAA, Small Airplane Directorate, 2300  East
Devon Avenue, Des  Plaines, IL 60018-4696;  telephone (847) 294-7132;  fax
(847) 294-7834.
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 Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) series propellers with non- suffix serial number (SN) propeller hubs installed on Lycoming O-, IO-, LO-, and AEIO-360 series reciprocating engines. This AD requires initial and repetitive eddy current inspections (ECI) of the front cylinder half of the propeller hub for cracks and removing cracked hubs from service before further flight. In addition, this AD allows installation of an improved design propeller hub (suffix SN "A" or "B") as terminating action to the repetitive ECI. This AD results from a report of a propeller blade separating from a propeller hub. We are issuing this AD to prevent failure of the propeller hub causing blade separation and subsequent loss of airplane control. 

DATES: This AD becomes effective September 25, 2006. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of September 25, 2006. 
We must receive any comments on this AD by November 7, 2006. 

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. 

Contact Hartzell Propeller Inc. Technical Publications Department, One Propeller Place, Piqua, OH 45356; telephone (937) 778-4200; fax (937) 778-4391, for the service information identified in this AD. 

FOR FURTHER INFORMATION CONTACT: Tim Smyth, Aerospace Engineer, Chicago Aircraft Certification Office, FAA, Small Airplane Directorate, 2300 East Devon Avenue, Des Plaines, IL 60018-4696; telephone (847) 294- 7132; fax (847) 294-7834. 

SUPPLEMENTARY INFORMATION: In April 2006, we received a report of a propeller blade separation on a Hartzell Propeller Inc. two blade, aluminum hub, "compact" ( )HC-( )2Y( )-( ) series propeller. Also, to date, we received seven reports of excessive vibration determined to be caused by cracks in the propeller hub fillet. Those propellers were manufactured before December 1991 (non-suffix SN propeller hubs) and are installed on Lycoming O-, IO-, LO-, and AEIO-360 series reciprocating engines. This condition, if not corrected, could result in blade separation and subsequent loss of airplane control. 

Relevant Service Information 

We have reviewed and approved the technical contents of Hartzell Propeller Inc. Service Bulletin (SB) HC-SB-61-269, dated April 18, 2005. That SB describes procedures for eddy current inspections of propeller hubs on affected propellers. That SB also lists improved design replacement propeller hub part numbers. 

FAA's Determination and Requirements of This AD 

The unsafe condition described previously is likely to exist or develop on other Hartzell Propeller Inc. 
( )HC-( )2Y( )-( ) series propellers of the same type design. For that reason, we are issuing this AD to prevent failure of the propeller hub causing blade separation and subsequent loss of airplane control. This AD requires, within 50 operating hours time-in-service (TIS), an initial ECI of the front cylinder half of non-suffix SN propeller hubs for cracks. This AD also requires, within every 100 operating hours TIS or annual inspection, whichever occurs first, repetitive ECIs of the front cylinder half of non-suffix SN propeller hubs for cracks. This AD also requires removing cracked hubs from service before further flight. You must use the service information described previously to perform the actions required by this AD. 

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-2006-25244; Directorate Identifier 2006-NE-25-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 Docket Office 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 the regulation: 
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, Incorporation by reference, 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: