2024-05-04: Fuel Boost Pump

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive (AD) 2020-23-04, Amendment 39-21320 (85 FR 71232, November 9, 2020); and b. Adding the following new AD: 2024-05-04 Gulfstream Aerospace Corporation: Amendment 39-22695; Docket No. FAA-2023-1805; Project Identifier AD-2023-00019-T. (a) Effective Date This airworthiness directive (AD) is effective May 2, 2024. (b) Affected ADs This AD replaces AD 2020-23-04, Amendment 39-21320 (85 FR 71232, November 9, 2020) (AD 2020-23-04). (c) Applicability This AD applies to the Gulfstream Aerospace Corporation airplanes, certificated in any category, identified in paragraphs (c)(1) and (2) of this AD. (1) Model GVII-G500 airplanes, serial numbers (S/Ns) 72001 and subsequent. (2) Model GVII-G600 airplanes, S/Ns 73001 and subsequent. (d) Subject Air Transport Association (ATA) of America Code 2822, Fuel Boost Pump. (e) Unsafe Condition This AD was prompted by a report of misassembled impellers onto the shaft of the fuel boost pump during production. The FAA is issuing this AD to prevent the ignition of flammable vapors in the fuel tank as a result of frictional heating or sparks caused by a missing, misplaced, or dislodged impeller shaft key inside the fuel boost pump. The unsafe condition, if not addressed, could result in a potential source of ignition in the fuel tank and consequent fire or explosion. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Manual Updates, With Updated Service Information This paragraph restates the requirements of paragraph (g) of AD 2020-23-04, with updated service information. For Model GVII-G500 airplane S/Ns 72001 and 72007 through 72062 inclusive; and Model GVII-G600 airplane S/Ns 73002, 73004, 73006 through 73040 inclusive, 73042, and 73043: Within 14 days after November 24, 2020 (the effective date of AD 2020-23-04), do the actions in paragraphs (g)(1) through (3) of this AD, as applicable. (1) Revise your existing airplane maintenance manual (AMM) by replacing the procedures listed in paragraphs (g)(1)(i) through (vi) of this AD, as applicable for your model airplane. (i) GVII-G500 Maintenance Manual 12-13-01 Defueling Procedure-Defuel, dated August 31, 2020; or 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 12-Servicing, Gulfstream Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023. (ii) GVII-G500 Maintenance Manual 28-26-04 Fuel Boost Pump-Prime, dated August 31, 2020; or 28-26-04 Fuel Boost Pump-Prime, 28-26 Engine and APU Fuel Delivery, Chapter 28-Fuel, Gulfstream Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023. (iii) GVII-G600 Maintenance Manual 12-13-01 Defueling Procedure-Defuel, dated August 31, 2020; or 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 12-Servicing, Gulfstream Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023. (iv) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-Prime, dated August 31, 2020. (v) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-Removal/Installation, dated August 31, 2020; or 28-26-04 Fuel Boost Pump-Removal/Installation, 28-26 Engine and APU Fuel Delivery, Chapter 28-Fuel, Gulfstream Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023. (vi) GVII-G600 Maintenance Manual 28-26-05 Fuel Boost Pump Canister-Removal/Installation, dated August 31, 2020. (2) Revise your existing airplane flight manual (AFM) by including in the AFM the airplane flight manual supplement (AFMS) listed in paragraph (g)(2)(i), (ii), or (iii) of this AD that is applicable to your model airplane. Using a later AFM revision with information identical to that contained in the AFMS specified for your airplane is acceptable for compliance with the requirement of this paragraph. (i) Gulfstream Aerospace GVII-G500 Airplane Flight Manual Supplement No. GVII-G500 (Issue 1)-2020-05, dated September 8, 2020; or (ii) Gulfstream Aerospace GVII-G500 Airplane Flight Manual Supplement No. GVII-G500-2020-06, dated September 8, 2020; or (iii) Gulfstream Aerospace GVII-G600 Airplane Flight Manual Supplement No. GVII-G600-2020-06, dated September 8, 2020. (3) The action required by paragraph (g)(2) of this AD may be performed by the owner/operator (pilot) holding at least a private pilot certificate and must be entered into the aircraft records showing compliance with this AD in accordance with 14 CFR 43.9(a)(1) through (4), and 14 CFR 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. (h) New Requirements For Model GVII-G500 airplane S/Ns 72001 and 72007 through 72062 inclusive; and Model GVII-G600 airplane S/Ns 73002, 73004, 73006 through 73040 inclusive, 73042, and 73043: Except as specified in paragraph (i) of this AD, within 24 months after the effective date of this AD, do all actions specified in paragraph III.D. and all applicable actions identified as "RC" (required for compliance) in, and in accordance with, the Accomplishment Instructions of Gulfstream GVII-G500 Customer Bulletin No. 069 or Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, both dated February 2, 2023, as applicable. Note 1 to paragraph (h): The serial number on the aft exterior of the pump is not the pump serial number. Note 2 to paragraph (h): Guidance on pump removal and installation procedures can be found in Gulfstream Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 12, dated June 15, 2022; and Gulfstream Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 8, dated June 15, 2022. (i) Service Information Exception Where Gulfstream GVII-G500 Customer Bulletin No. 069 and Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, both dated February 2, 2023, specify to return any pump for repair, this AD requires replacing the pump in accordance with the applicable service information identified in paragraph (h) of this AD. (j) Terminating Action for Paragraph (g) of This AD The requirements of paragraph (g) of this AD are terminated if all applicable actions required by paragraph (h) of this AD have been accomplished. (k) Parts Installation Limitation As of the effective date of the AD, no person may install on any airplane a fuel boost pump having a part and serial number specified in Table 1 of Gulfstream GVII-G500 Customer Bulletin No. 069 or Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, both dated February 2, 2023, as applicable, unless that pump is marked with the letter "C" to the right of the "INSP" legend on the pump data area. (l) Credit for Previous Actions This paragraph provides credit for the actions specified in paragraph (h) of this AD, if those actions were performed before the effective date of this AD using the service information identified in paragraphs (l)(1) and (2) of this AD, as applicable. This service information is not incorporated by reference in this AD. (1) Gulfstream GVII-G500 Customer Bulletin No. 069, dated October 19, 2022. (2) Gulfstream GVII-G600 Customer Bulletin No. 037, dated October 19, 2022. (m) Alternative Methods of Compliance (AMOCs) (1) The Manager, East Certification Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (n)(1) of this AD. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (3) AMOCs approved for AD 2020-23-04 are approved as AMOCs for the corresponding provisions of this AD. (4) For service information that contains steps that are labeled as Required for Compliance (RC), the provisions of paragraphs (m)(4)(i) and (ii) of this AD apply. (i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. An AMOC is required for any deviations to RC steps, including substeps and identified figures. (ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. (n) Related Information (1) For more information about this AD, contact Jared Meyer, Aviation Safety Engineer, FAA, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-474-5534; email: 9-ASO-ATLACO-ADs@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the address specified in paragraph (o)(5) of this AD. (o) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (3) The following service information was approved for IBR on May 2, 2024. (i) Gulfstream GVII-G500 Customer Bulletin No. 069, Revision A, dated February 2, 2023. (ii) Gulfstream GVII-G600 Customer Bulletin No. 037, Revision A, dated February 2, 2023. (iii) 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 12-Servicing, Gulfstream Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023. Note 3 to paragraph (o)(3)(iii): The manufacturer name is located only on the title page of the documents identified in paragraphs (o)(3)(iii) and (iv) of this AD. (iv) 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 12-Servicing, Gulfstream Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023. (v) 28-26-04 Fuel Boost Pump-Prime, 28-26 Engine and APU Fuel Delivery, Chapter 28-Fuel, Gulfstream Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023. Note 4 to paragraph (o)(3)(v): The manufacturer name is located only on the title page of the documents identified in paragraphs (o)(3)(v) and (vi) of this AD. (vi) 28-26-04 Fuel Boost Pump-Removal/Installation, 28-26 Engine and APU Fuel Delivery, Chapter 28-Fuel, Gulfstream Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023. (4) The following service information was approved for IBR on November 24, 2020 (85 FR 71232, November 9, 2020). (i) Gulfstream Aerospace GVII-G500 Airplane Flight Manual Supplement No. GVII-G500 (Issue 1)-2020-05, dated September 8, 2020. (ii) Gulfstream Aerospace GVII-G500 Airplane Flight Manual Supplement No. GVII-G500-2020-06, dated September 8, 2020. (iii) Gulfstream Aerospace GVII-G600 Airplane Flight Manual Supplement No. GVII-G600-2020-06 dated September 8, 2020. (iv) GVII-G500 Maintenance Manual 12-13-01 Defueling Procedure-Defuel, dated August 31, 2020. Note 5 to paragraph (o)(4)(iv): Although the documents in paragraphs (o)(4)(iv) through (ix) have the watermarked words "advance copy" on each page of the document, these are not advance draft copies but final versions of temporary revisions to the AMM, pending incorporation into the AMM at the next revision. (v) GVII-G500 Maintenance Manual 28-26-04 Fuel Boost Pump-Prime, dated August 31, 2020. (vi) GVII-G600 Maintenance Manual 12-13-01 Defueling Procedure-Defuel, dated August 31, 2020. (vii) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-Prime, dated August 31, 2020. (viii) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-Removal/Installation, dated August 31, 2020. (ix) GVII-G600 Maintenance Manual 28-26-05 Fuel Boost Pump Canister-Removal/Installation, dated August 31, 2020. (5) For service information identified in this AD, contact Gulfstream Aerospace Corporation, Technical Publications Dept., P.O. Box 2206, Savannah, GA 31402-2206; telephone 800-810-4853; email pubs@gulfstream.com; website gulfstream.com/en/customer-support. (6) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (7) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov . Issued on March 21, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-06478 Filed 3-27-24; 8:45 am]BILLING CODE 4910-13-P