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2010-16-01 EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER): Amendment 39-16377. Docket No. FAA-2008-1079; Directorate Identifier 2008-NM-116-AD.
EFFECTIVE DATE

(a) This airworthiness directive (AD) becomes effective September 9, 2010.

AFFECTED ADS

(b) This AD supersedes AD 2008-13-14, Amendment 39-15577.

APPLICABILITY

(c) This  AD  applies  to Empresa Brasileira de Aeronautica S.A. (EMBRAER)
    Model EMB-135ER, -135KE, -135KL,  and -135LR airplanes, and  Model EMB
    -145, -145ER,  -145MR, -145LR,  -145XR, -145MP,  and -145EP airplanes;
    certificated in  any category;  except for  Model EMB-145LR  airplanes
    modified according to Brazilian Supplemental Type Certificate  2002S06
    -09, 2002S06-10, or 2003S08-01.

NOTE 1:  This  AD  requires  revisions  to  certain  operator  maintenance
documents to include new inspections. Compliance with these inspections is
required by  14 CFR  91.403(c). For  airplanes that  have been  previously
modified,  altered,  or   repaired  in  the   areas  addressed  by   these
inspections, the operator  may not be  able to accomplish  the inspections
described  in the  revisions. In  this situation,  to comply  with 14  CFR
91.403(c), the operator must request approval for an alternative method of
compliance  according to  paragraph (h)  of this  AD.  The  request should
include a  description of  changes to  the required  inspections that will
ensure the continued operational safety of the airplane.

SUBJECT

(d) Air Transport Association (ATA) of America Code 28: Fuel.

REASON

(e) The mandatory continuing airworthiness information  (MCAI),  Brazilian
    Airworthiness  Directive  2007-08-02,  effective  September  27, 2007,
    states:

    Fuel  system  reassessment,  performed  according  to RBHA-E88/SFAR-88
    (Regulamento Brasileiro de Homologacao Aeronautica 88/Special  Federal
    Aviation Regulation No. 88), requires the inclusion of new maintenance
    tasks in the Critical Design Configuration Control Limitations (CDCCL)
    and  in  the  Fuel System  Limitations  (FSL),  necessary to  preclude
    ignition sources in the fuel system. * * *

    The  MCAI,  Brazilian  Airworthiness  Directive  2009-08-03, effective
    August 20, 2009, states:

    An  airplane  fuel tank  systems  review required  by  Special Federal
    Aviation Regulation Number 88 (SFAR 88) and "RBHA Especial Numero  88"
    (RBHA  E  88) has  shown  that additional  maintenance  and inspection
    instructions are necessary to maintain the design features required to
    preclude the existence or development of an ignition source within the
    fuel tanks of the airplane.

    The  corrective  action  is  revising  the  Airworthiness  Limitations
    Section (ALS) of the Instructions for Continued Airworthiness (ICA) to
    incorporate new limitations for fuel tank systems.

RESTATEMENT OF REQUIREMENTS OF AD 2008-13-14

ACTIONS AND COMPLIANCE

(f) Unless already done, do the following actions.

(1) Before December 16, 2008, revise the ALS of  the  ICA  to  incorporate
    Section A2.5.2, Fuel System Limitation Items, of Appendix 2 of EMBRAER
    EMB135/ERJ140/EMB145  Maintenance  Review  Board  Report MRB-145/1150,
    Revision 11, dated September 19, 2007, except as provided by paragraph
    (g) of this AD.  Except as required by  paragraph (g) of this  AD, for
    all  tasks  identified in  Section  A2.5.2 of  Appendix  2 of  EMBRAER
    EMB135/ERJ140/EMB145  Maintenance  Review  Board  Report MRB-145/1150,
    Revision 11, dated  September 19, 2007,  the initial compliance  times
    start from the applicable times specified  in Table 1 of this AD;  and
    the  repetitive inspections  must be  accomplished thereafter  at  the
    interval  specified  in  Section  A2.5.2  of  Appendix  2  of  EMBRAER
    EMB135/ERJ140/EMB145  Maintenance  Review  Board  Report MRB-145/1150,
    Revision  11,  dated  September  19,  2007,  except  as  provided   by
    paragraphs (f)(3) and (h) of this AD.

                       TABLE 1--INITIAL INSPECTIONS
__________________________________________________________________________
  REFERENCE NUMBER      DESCRIPTION                  COMPLIANCE TIME
                                                 (WHICHEVER OCCURS LATER)
                                                THRESHOLD     GRACE PERIOD
__________________________________________________________________________
28-11-00-720-001-A00   Functionally Check       Before the    Within 90
                       critical bonding         accumulation  days after
                       integrity of selected    of 30,000     December 16,
                       conduits inside the      total flight  2008
                       wing tank, Fuel Pump     hours
                       and FQIS connectors
                       at tank wall by
                       conductivity
                       measurements

28-17-01-720-001-A00   Functionally Check       Before the    Within 90
                       critical bonding         accumulation  days after
                       integrity of Fuel        of 30,000     December 16,
                       Pump, VFQIS and Low      total flight  2008
                       Level SW connectors      hours
                       at tank wall by
                       conductivity
                       measurements

28-21-01-220-001-A00   Inspect Electric         Before the    Within 90
                       Fuel Pump Connector      accumulation  days after
                                                of 10,000     December 16,
                                                total flight  2008
                                                hours

28-23-03-220-001-A00   Inspect Pilot Valve      Before the    Within 90
                       harness inside the       accumulation  days after
                       conduit                  of 20,000     December 16,
                                                total flight  2008
                                                hours

28-23-04-220-001-A00   Inspect Vent Valve       Before the    Within 90
                       harness inside the       accumulation  days after
                       conduit                  of 20,000     December 16,
                                                total flight  2008
                                                hours

28-27-01-220-001-A00   Inspect Electric         Before the    Within 90
                       Fuel Transfer Pump       accumulation  days after
                       Connector                of 10,000     December 16,
                                                total flight  2008
                                                hours

28-41-03-220-001-A00   Inspect FQIS             Before the    Within 90
                       harness for clamp        accumulation  days after
                       and wire jacket          of 20,000     December 16,
                       integrity                total flight  2008
                                                hours

28-41-07-220-001-A00   Inspect VFQIS and        Before the    Within 90
                       Low Level SW             accumulation  days after
                       Harness for clamp        of 20,000     December 16,
                       and wire jacket          total flight  2008
                       integrity                hours
__________________________________________________________________________

(2) Within  90  days  after   July 30, 2008  (the  effective  date  of  AD
    2008-13-14), revise the ALS of the ICA to incorporate items 1, 2,  and
    3 of  Section A2.4,  Critical Design  Configuration Control Limitation
    (CDCCL),  of Appendix  2 of  EMBRAER EMB135/ERJ140/EMB145  Maintenance
    Review Board  Report MRB-145/1150,  Revision 11,  dated September  19,
    2007.

(3) After  accomplishing  the  actions  specified in paragraphs (f)(1) and
    (f)(2) of this AD,  no alternative inspections, inspection  intervals,
    or CDCCLs may be used unless the inspections, intervals, or CDCCLs are
    approved as an alternative  method of compliance (AMOC)  in accordance
    with the procedures specified in paragraph (h) of this AD.

NEW REQUIREMENTS OF THIS AD

ACTIONS AND COMPLIANCE

(g) Unless already done, do the following actions.

(1) Within 30 days after the effective date of this AD,  revise the ALS of
    the ICA  to incorporate  Tasks 28-41-01-720-001-A01  and 28- 41-04-720
    -001-A01 identified in  Table 2 of  this AD into  Section A2.5.2, Fuel
    System Limitation Items, of Appendix 2 of EMBRAER EMB135/ERJ140/EMB145
    Maintenance  Review  Board  Report  MRB-145/1150.  After incorporating
    Tasks  28-41-01-720-001-A01  and  28-41-04-720-001-A01  identified  in
    Table 2  of this  AD, Tasks  28-41-01-720-001-A00 and 28-41-04-720-001
    -A00  identified  in   Section  A2.5.2  of   Appendix  2  of   EMBRAER
    EMB135/ERJ140/EMB145 Maintenance  Review  Board  Report  MRB-145/1150,
    Revision 11, dated September 19, 2007, are no longer required. For the
    fuel limitation tasks identified in Table 2 of this AD, do the initial
    task at  the later  of the  applicable "Threshold"  and "Grace Period"
    times  specified in  Table 2  of this  AD. FCUs  on  which  Parker has
    performed  the initial  tasks required  by this  paragraph before  the
    effective date of this AD, and which are marked with "Service Bulletin
    367-934-28-110, Revision  A" and  the date  of accomplishment,  are in
    compliance with the corresponding task required by this paragraph.

                          TABLE 2--INSPECTIONS
__________________________________________________________________________
TASK       DESCRIPTION    PART           COMPLIANCE TIME        REPETITIVE
NUMBER                    NUMBER     (WHICHEVER OCCURS LATER)    INTERVAL
                                     THRESHOLD   GRACE PERIOD    (NOT TO
                                                                 EXCEED)
__________________________________________________________________________
28-41-01-  Perform an   367-934-001  Before the    Within 90    10,000
720-001-   initial                   accumulation  days after   flight
A01        functional                of 10,000     the          hours on
           check as                  total flight  effective    the FCU
           shown in                  hours on the  date of      since the
           Testing and               FCU           this AD      most
           Fault                                                recent
           Isolation                                            functional
           sections 1,                                          check
           2, and 3;
           an external
           visual
           inspection
           as shown in
           the Check
           section 2;
           an internal
           visual
           inspection
           as shown in
           the Repair
           section 1;
           a functional
           check of the
           safe-life
           features as
           shown in
           Testing and
           Fault
           Isolation
           section 4;
           and a final
           functional
           check as
           shown in
           Testing and
           Fault
           Isolation
           sections 1,
           2, and 3; of
           the fuel
           conditioning
           unit (FCU),
           in accordance
           with Parker
           Component
           Maintenance
           Manual (CMM)
           28-41-36,
           Revision 4,
           dated March
           13, 2009

28-41-01-  Perform an   367-934-002  Before the    Within 90    10,000
720-001-   initial                   accumulation  days after   flight
A01        functional                of 10,000     the          hours on
           check as                  total flight  effective    the FCU
           shown in                  hours on the  date of      since the
           Testing and               FCU           this AD      most
           Fault                                                recent
           Isolation                                            functional
           sections 1,                                          check
           2, and 3; an
           external
           visual
           inspection
           as shown in
           Check section
           2; an internal
           visual
           inspection as
           shown in Repair
           section 1; a
           functional
           check of the
           safe-life
           features as
           shown in
           Testing and
           Fault
           Isolation
           section 4;
           and a final
           functional
           check as shown
           in Testing and
           Fault
           Isolation
           sections 1, 2,
           and 3; of the
           FCU, in
           accordance
           with Parker
           CMM 28-41-69,
           Revision 2,
           dated March
           13, 2009

28-41-04-  Perform an   367-934-005  Before the    Within 90    10,000
720-001-   initial                   accumulation  days after   flight
A01        functional                of 10,000     the          hours on
           check as                  total flight  effective    the VFCU
           shown in                  hours on the  date of      since the
           Testing and               VFCU          this AD      most
           Fault                                                recent
           Isolation                                            functional
           sections 1,                                          check
           2, and 3;
           an external
           visual
           inspection
           as shown in
           Check
           section 2;
           an internal
           visual
           inspection
           as shown in
           Repair
           section 1;
           a functional
           check of the
           safe-life
           features as
           shown in
           Testing and
           Fault
           Isolation
           section 4;
           and a final
           functional
           check as
           shown in
           Testing and
           Fault
           Isolation
           sections 1,
           2, and 3; of
           the ventral
           FCU (VFCU),
           in accordance
           with Parker
           CMM 28-41-80,
           dated April
           3, 2009
__________________________________________________________________________

(2) After accomplishing the actions specified in paragraphs (g)(1) of this
    AD, no  alternative inspections  or inspection  intervals may  be used
    unless  the  inspections  or  intervals are  approved  as  an  AMOC in
    accordance with the procedures  specified in paragraph (h)(1)  of this
    AD.

EXPLANATION OF CDCCL REQUIREMENTS

NOTE 2: Notwithstanding any other maintenance or operational requirements,
components that  have been  identified as  airworthy or  installed on  the
affected airplanes before the revision of the ALS of the ICA, as  required
by paragraph (f)(3) of this AD,  do not need to be reworked  in accordance
with the CDCCLs. However, once the ALS of the ICA has been revised, future
maintenance actions on  these components must  be done in  accordance with
the CDCCLs.

FAA AD DIFFERENCES

NOTE 3: This  AD differs  from  the  MCAI  and/or  service information  as
follows:

(1) The  applicability  of  Brazilian  AD 2009-08-03, effective August 20,
    2009, includes  Model EMB-135BJ  airplanes. This  AD does  not include
    that model because that model is included in the applicability of  FAA
    AD  2008-13-15,  Amendment   39-15578.  We  are   considering  further
    rulemaking to revise AD 2008-13-15.

(2) Although  Brazilian  Airworthiness  Directive  2009-08-03,   effective
    August 20, 2009, specifies both revising the airworthiness limitations
    and  repetitively  inspecting,  this AD  only  requires  the revision.
    Requiring a  revision of  the airworthiness  limitations, rather  than
    requiring  individual  repetitive inspections,  requires  operators to
    record AD compliance status only  at the time they make  the revision,
    rather than after  every inspection. Repetitive  inspections specified
    in the airworthiness limitations  must be complied with  in accordance
    with 14 CFR 91.403(c).

OTHER FAA AD PROVISIONS

(h) The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager,  International
    Branch, ANM-116, FAA, has the authority to approve AMOCs for this  AD,
    if  requested  using  the  procedures  found  in  14  CFR  39.19. Send
    information to ATTN: Todd Thompson, Aerospace Engineer,  International
    Branch,  ANM-116,  Transport  Airplane  Directorate,  FAA,  1601  Lind
    Avenue, SW., Renton,  Washington 98057-3356;  telephone  425-227-1175;
    fax (425) 227-1149. Before using any approved AMOC on any airplane  to
    which the  AMOC applies,  notify your  principal maintenance inspector
    (PMI)  or  principal  avionics  inspector  (PAI),  as  appropriate, or
    lacking a  principal inspector,  your local  Flight Standards District
    Office. The AMOC approval letter must specifically reference this AD.

(2) Airworthy Product: For any requirement in this AD to obtain corrective
    actions from a manufacturer or other source, use these actions if they
    are FAA-approved.  Corrective actions  are considered  FAA-approved if
    they are approved by the State of Design Authority (or their delegated
    agent). You are required to assure the product is airworthy before  it
    is returned to service.

(3) Reporting  Requirements:  For  any  reporting  requirement in this AD,
    under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et
    seq.), the  Office of  Management and  Budget (OMB)  has approved  the
    information  collection  requirements  and  has  assigned  OMB Control
    Number 2120-0056.

RELATED INFORMATION

(i) Refer to MCAI Brazilian Airworthiness Directives 2007-08-02, effective
    September  27,  2007,  and  2009-08-03,  effective  August  20,  2009;
    Sections  A2.5.2, Fuel  System Limitation  Items,  and  A2.4, Critical
    Design  Configuration Control  Limitation (CDCCL),  of  Appendix  2 of
    EMBRAER  EMB135/ERJ140/EMB145  Maintenance  Review  Board  Report  MRB
    -145/1150, Revision 11, dated September 19, 2007; and the Parker  CMMs
    listed in Table 2 of this AD; for related information.

MATERIAL INCORPORATED BY REFERENCE

(j) You must use the applicable service information contained  in  Table 3
    of  this AD  to do  the actions  required by  this AD,  unless the  AD
    specifies otherwise. (Parker  Component Maintenance  Manual  28-41-36,
    Revision 4, dated March 13,  2009, contains an incorrect date  on page
    105;  the  correct  date   is  March  13,  2009.)   (Parker  Component
    Maintenance  Manual  28-41-69,  Revision  2,  dated  March  13,  2009,
    contains the following  errors: Page 105  contains an incorrect  date;
    the correct date is March 13,  2009; and there are 3 pages  identified
    with the same page number (i.e., LEP-2); the first page identified  as
    LEP-2 (i.e., Sheet 1 of 2) should be identified as LEP-1 and the third
    page identified as LEP-2 (i.e.,  the blank page) should be  identified
    as LEP-3.)

               TABLE 3--ALL MATERIAL INCORPORATED BY REFERENCE            
    ______________________________________________________________________
            DOCUMENT                  REVISION                DATE
    ______________________________________________________________________
    Sections A2.5.2, Fuel System         11             September 19, 2007
    Limitation Items, and A2.4,
    Critical Design Configuration
    Control Limitation (CDCCL),
    of Appendix 2 of EMBRAER
    EMB135/ERJ140/EMB145
    Maintenance Review Board
    Report MRB-145/1150

    Parker Component Maintenance          4               March 13, 2009
    Manual 28-41-36

    Parker Component Maintenance          2               March 13, 2009
    Manual 28-41-69

    Parker Component Maintenance      Original            April 3, 2009
    Manual 28-41-80
    ______________________________________________________________________

(1) The Director of the Federal Register  approved  the  incorporation  by
    reference of the service information  contained in Table 4 of  this AD
    under 5 U.S.C. 552(a) and 1 CFR part 51.

               TABLE 4--NEW MATERIAL INCORPORATED BY REFERENCE            
    ______________________________________________________________________
            DOCUMENT                  REVISION                DATE
    ______________________________________________________________________
    Parker Component Maintenance          4               March 13, 2009
    Manual 28-41-36

    Parker Component Maintenance          2               March 13, 2009
    Manual 28-41-69

    Parker Component Maintenance      Original            April 3, 2009
    Manual 28-41-80
    ______________________________________________________________________

(2) The  Director  of   the   Federal  Register  previously  approved  the
    incorporation by reference of Sections A2.5.2, Fuel System  Limitation
    Items,  and  A2.4, Critical  Design  Configuration Control  Limitation
    (CDCCL),  of Appendix  2 of  EMBRAER EMB135/ERJ140/EMB145  Maintenance
    Review Board  Report MRB-145/1150,  Revision 11,  dated September  19,
    2007, on July 30, 2008 (73 FR 35904, June 25, 2008).

(3) For EMBRAER service information identified in this AD, contact Empresa
    Brasileira  de  Aeronautica  S.A.  (EMBRAER),  Technical  Publications
    Section (PC  060),  Av.  Brigadeiro  Faria  Lima, 2170-Putim-12227-901
    Sao  Jose  dos  Campos-SP-BRASIL;   telephone  +55  12  3927-5852   or
    +55 12 3309-0732; fax +55 12 3927-7546; e-mail distrib@embraer.com.br;
    Internet:  http://www.flyembraer.com. For  Parker service  information
    identified in this AD, contact Parker Hannifin Corporation,  Aerospace
    Group, Electronic Systems  Division, 300 Marcus  Boulevard, Smithtown,
    New      York      11787;      telephone      631-231-3737;     e-mail
    csoengineering@parker.com; Internet: http://www.parker.com.

(4) You may review copies of the service information at the FAA, Transport
    Airplane Directorate, 1601 Lind  Avenue, SW., Renton, Washington.  For
    information on the availability of this material at the FAA, call  425
    -227-1221.

(5) You may  also  review  copies  of  the  service  information  that  is
    incorporated  by  reference  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/code_of_federal_regulations/
    ibr_locations.html.

Issued  in Renton,  Washington on  July 16,  2010.  Ali  Bahrami, Manager,
Transport Airplane Directorate, Aircraft Certification Service.

FOR  FURTHER  INFORMATION  CONTACT:  Todd  Thompson,  Aerospace  Engineer,
International Branch, ANM-116,  Transport Airplane Directorate,  FAA, 1601
Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 227-1175;
fax (425) 227-1149.
PREAMBLE 

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

ACTION: Final rule.

SUMMARY: We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The earlier MCAI, Brazilian Airworthiness Directive 2007-08-02, effective September 27, 2007, describes the unsafe condition as:

Fuel system reassessment, performed according to RBHA-E88/SFAR- 88 (Regulamento Brasileiro de Homologacao Aeronautica 88/Special Federal Aviation Regulation No. 88), requires the inclusion of new maintenance tasks in the Critical Design Configuration Control Limitations (CDCCL) and in the Fuel System Limitations (FSL), necessary to preclude ignition sources in the fuel system. * * *

The new MCAI, Brazilian Airworthiness Directive 2009-08-03, effective August 20, 2009, describes the unsafe condition as:

An airplane fuel tank systems review required by Special Federal Aviation Regulation Number 88 (SFAR 88) and "RBHA Especial N[uacute]mero 88'' (RBHA E 88) has shown that additional maintenance and inspection instructions are necessary to maintain the design features required to preclude the existence or development of an ignition source within the fuel tanks of the airplane.

We are issuing this AD to require actions to correct the unsafe condition on these products.

DATES: This AD becomes effective September 9, 2010.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 9, 2010.
On July 30, 2008 (73 FR 35904, June 25, 2008), the Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD.

DATES: This AD becomes effective September 9, 2010.

ADDRESSES: You may examine the AD docket on the Internet at http:// www.regulations.gov or in person at the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 227-1175; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Discussion

We issued a supplemental notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to the specified products. That supplemental NPRM was published in the Federal Register on March 23, 2010 (75 FR 13689), and proposed to supersede AD 2008-13-14, Amendment 39-15577 (73 FR 35904, June 25, 2008). That NPRM proposed to require revision of the airworthiness limitations section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. The earlier MCAI, Brazilian Airworthiness Directive 2007-08-02, effective September 27, 2007, describes the unsafe condition as:

Fuel system reassessment, performed according to RBHA-E88/SFAR- 88 (Regulamento Brasileiro de Homologacao Aeronautica 88/Special Federal Aviation Regulation No. 88), requires the inclusion of new maintenance tasks in the Critical Design Configuration Control Limitations (CDCCL) and in the Fuel System Limitations (FSL), necessary to preclude ignition sources in the fuel system. * * *

The new MCAI, Brazilian Airworthiness Directive 2009-08-03, effective August 20, 2009, describes the unsafe condition as:

An airplane fuel tank systems review required by Special Federal Aviation Regulation Number 88 (SFAR 88) and "RBHA Especial N[uacute]mero 88'' (RBHA E 88) has shown that additional maintenance and inspection instructions are necessary to maintain the design features required to preclude the existence or development of an ignition source within the fuel tanks of the airplane.

The corrective action is revising the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness (ICA) to incorporate new limitations for fuel tank systems. You may obtain further information by examining the MCAI in the AD docket.

Comments

We gave the public the opportunity to participate in developing this AD. We considered the comments received.

Request To Allow Service Bulletin for Compliance

ExpressJet Airlines and EMBRAER request that we revise the supplemental NPRM to consider Parker Service Bulletin 367-934-28-110, Revision A, dated December 19, 2006, as documentation for past compliance with the inspections and functional checks of the safe-life features.
ExpressJet reports that, since early 2007, Parker has been referencing this service bulletin (by marking the inspected units with the service bulletin number and date of accomplishment) to show compliance with these inspections.
EMBRAER notes that the fuel conditioning unit (FCU) and the ventral fuel conditioning unit (VFCU) are manufactured by Parker. To clarify which checks and inspections are to be performed on the FCU and VFCU, and ensure that the safe-life features are maintained, Parker has published Component Maintenance Manuals (CMMs) 28-41-36, Revision 4, dated March 13, 2009; 28-41-69, Revision 2, dated March 13, 2009; and 28-41-80, dated April 3, 2009. Parker also issued Test Manual (TM) 4213-025, "Identicallity of Testing Performed--EMB-145 FCU CMM 28-41- XX/Service Bulletin 367-934-28-110 for EMB-145 FAMILY--Fuel Conditioning Units,'' Revision A, dated October 13, 2009. EMBRAER states that the purpose of the TM is to describe the identicality of the testing performed on EMB-145 FCUs returned under the current service bulletin to the CMMs. The TM substantiates that all CUs already in compliance with the 10,000-flight-hour inspection in accordance with Parker Service Bulletin 367-934-28-110 have had the equivalent inspection to the safe-life testing required in the CMMs. EMBRAER reports that, when an FCU is returned to the field after having the service bulletin incorporated, the unit is returned to the customer with an FAA 8130-3 tag indicating that Parker Service Bulletin 367-934-28-110 was accomplished, and the FCU is also marked accordingly.
We agree with the request and the commenters' rationale. We have added a provision to this AD to consider FCUs inspected by Parker and marked with the service bulletin number and the date of accomplishment to be in compliance with the requirements of paragraph (g)(1) of this AD.

Conclusion

We reviewed the available data, including the comments received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We determined that these changes will not increase the economic burden on any operator or increase the scope of the AD.

Differences Between This AD and the MCAI or Service Information

We have reviewed the MCAI and related service information and, in general, agree with their substance. But we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable in a U.S. court of law. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information.
We might also have required different actions in this AD from those in the MCAI in order to follow our FAA policies. Any such differences are described in a separate paragraph of the AD. These requirements, if any, take precedence over the actions copied from the MCAI.

Costs of Compliance

Based on the service information, we estimate that this AD affects about 41 products of U.S. registry.
The actions that are required by AD 2008-13-14 and retained in this AD take about 1 work-hour per product, at an average labor rate of $85 per work hour. Based on these figures, the estimated cost of the currently required actions is $85 per product.
We estimate that it takes about 1 work-hour per product to comply with the new basic requirements of this AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of the AD on U.S. operators to be $3,485, or $85 per product.

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 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 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 regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD Docket.

Examining the AD Docket

You may examine the AD docket on the Internet at http:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 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 removing Amendment 39-15577 (73 FR 35904, June 25, 2008) and adding the following new AD: