Airworthiness directives › 2011-10-12
AD 2011-10-12 Airworthiness Directives; Eurocopter France Model AS350B, B1, B2, B3, BA, and EC130 B4 Helicopters
Models named: AS350B, B1, B2, B3, BA, EC130 B4. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Model AS350B, B1, B2, B3, BA, and EC130 B4 helicopters with ARRIEL engines with Aircraft Parts Corporation (APC) starter-generators, part number (P/N) 150SG122Q or P/N 200SGL130Q, without “004” marked on the identification plate, installed, certificated in any category. Reason (d) The mandatory continuing airworthiness information (MCAI) AD states that several engine flameouts involved failure of the 41-tooth pinion in the engine accessory gearbox that caused the engine fuel pump to fail. Each affected helicopter had an APC (currently UNISON) starter-generator installed. Investigation revealed the torque damping system of the starter-generator was inoperative. The EASA AD requires a new adjustment procedure to optimize the performance of the specified starter-generator damping assembly. The required actions are intended to prevent failure of a pinion and a fuel pump, engine flameout, and subsequent loss of control of the helicopter.
Compliance
Within 110 hours time-in-service (TIS) or 3 months, whichever occurs first, unless already accomplished, do the following: (1) Replace the cup springs and fan nut, functionally test the damping system, and after this modification, mark “004” on the identification plate of the APC starter generator, as depicted in Figures 1 and 2, and by following the Accomplishment Instructions, paragraph 2.B.2., of Eurocopter Alert Service Bulletin (ASB) No. 80.00.07, Revision 1, dated February 6, 2009, for the Model AS350B, BA, B1, B2, and B3 helicopters; or ASB No. 80A003, Revision 1, dated February 6, 2009, for the Model EC130 B4 helicopter. (2) Before installing an APC starter-generator with P/N 150SG122Q or P/N 200SGL130Q, comply with the requirements of this AD. Differences Between This AD and the MCAI AD (f) The MCAI AD refers to flight hours instead of hours time-in-service. Other Information (g) Alternative Methods of Compliance (AMOCs): The Manager, Safety Management Group, Attn: DOT/FAA Southwest Region, Ed Cuevas, ASW-112, Aviation Safety Engineer, Rotorcraft Directorate, Safety Management Group, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone 817-222-5355, fax 817-222-5961, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (h) EASA AD No. 2009-0027, dated February 18, 2009, which supersedes and cancels EASA AD No. 2009-0004, dated January 12, 2009, contains related information. Joint Aircraft System/Component (JASC) Code (i) The JASC Code is 2435: Starter-Generator. Material Incorporated by Reference (j) You must use the specified portions of Eurocopter Alert Service Bulletin No. 80.00.07, Revision 1, dated February 6, 2009; or Eurocopter Alert Service Bulletin No. 80A003, Revision 1, dated February 6, 2009, to do the actions required. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact American Eurocopter Corporation, 2701 Forum Drive, Grand Prairie, TX 75053-4005, telephone 972-641-3460, fax 972-641-3527, or at http://www.eurocopter.com . (3) You may review copies at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Fort Worth, Texas 76137; 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 Fort Worth, Texas, on April 28, 2011. Scott A. Horn, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2011-11795 Filed 5-17-11; 8:45 am] BILLING CODE 4910-13-P
Required actions
Within 110 hours time-in-service (TIS) or 3 months, whichever occurs first, unless already accomplished, do the following: (1) Replace the cup springs and fan nut, functionally test the damping system, and after this modification, mark “004” on the identification plate of the APC starter generator, as depicted in Figures 1 and 2, and by following the Accomplishment Instructions, paragraph 2.B.2., of Eurocopter Alert Service Bulletin (ASB) No. 80.00.07, Revision 1, dated February 6, 2009, for the Model AS350B, BA, B1, B2, and B3 helicopters; or ASB No. 80A003, Revision 1, dated February 6, 2009, for the Model EC130 B4 helicopter. (2) Before installing an APC starter-generator with P/N 150SG122Q or P/N 200SGL130Q, comply with the requirements of this AD. Differences Between This AD and the MCAI AD (f) The MCAI AD refers to flight hours instead of hours time-in-service. Other Information (g) Alternative Methods of Compliance (AMOCs): The Manager, Safety Management Group, Attn: DOT/FAA Southwest Region, Ed Cuevas, ASW-112, Aviation Safety Engineer, Rotorcraft Directorate, Safety Management Group, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone 817-222-5355, fax 817-222-5961, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (h) EASA AD No. 2009-0027, dated February 18, 2009, which supersedes and cancels EASA AD No. 2009-0004, dated January 12, 2009, contains related information. Joint Aircraft System/Component (JASC) Code (i) The JASC Code is 2435: Starter-Generator. Material Incorporated by Reference (j) You must use the specified portions of Eurocopter Alert Service Bulletin No. 80.00.07, Revision 1, dated February 6, 2009; or Eurocopter Alert Service Bulletin No. 80A003, Revision 1, dated February 6, 2009, to do the actions required. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact American Eurocopter Corporation, 2701 Forum Drive, Grand Prairie, TX 75053-4005, telephone 972-641-3460, fax 972-641-3527, or at http://www.eurocopter.com . (3) You may review copies at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Fort Worth, Texas 76137; 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 Fort Worth, Texas, on April 28, 2011. Scott A. Horn, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2011-11795 Filed 5-17-11; 8:45 am] BILLING CODE 4910-13-P
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