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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 adding the following new airworthiness directive: 2023-02-02 Gulfstream Aerospace Corporation: Amendment 39-22309; Docket No. FAA-2022-1305; Project Identifier AD-2022-00913-T. (a) Effective Date This airworthiness directive (AD) is effective February 28, 2023. (b) Affected ADs None. (c) Applicability This AD applies to Gulfstream Aerospace Corporation Model GV and GV-SP airplanes, all serial numbers, certificated in any category. Note 1 to paragraph (c): Model GV-SP airplanes are also referred to by the marketing designations G500, G550, and G500-5000. (d) Subject Joint Aircraft System Component (JASC) Code 3200, Landing Gear System. (e) Unsafe Condition This AD was prompted by the omission of a life limit in the airworthiness limitations section (ALS) for a certain main landing gear (MLG) trunnion pin. The FAA is issuing this AD to prevent a MLG trunnion pin from remaining in service beyond its life limit. This unsafe condition, if not addressed, could result in MLG failure and could lead to a runway excursion. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Incorporation of ALS Revisions Within 12 months after the effective date of this AD, revise the existing ALS of the instructions for continued airworthiness or aircraft inspection program for your airplane by establishing a life limit of 20,000 flight cycles for each MLG trunnion pin part number (P/N) 1159SCL566-17. Note 2 to paragraph (g): The life limit in paragraph (g) of this AD is contained in table 5 in Section 05-10-10 of the Gulfstream V Aircraft Maintenance Manual, Revision 55, dated March 15, 2022; table 4 in Section 05-10-10 of the Gulfstream G500-5000 Aircraft Maintenance Manual, Revision 36, dated March 15, 2022; and table 4 in Section 05-10-10 of the Gulfstream G550 Aircraft Maintenance Manual, Revision 36, dated March 15, 2022. (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, Atlanta ACO 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 (i)(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. (i) Related Information (1) For more information about this AD, contact Miral Patel, Aerospace Engineer, Systems and Equipment Section, FAA, Atlanta ACO Branch, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-474-5590; email: 9-ASO-ATLACO-ADs@faa.gov . (2) For service information identified in this AD that is not incorporated by reference, contact Gulfstream Aerospace Corporation, Technical Publications Dept., P.O. Box 2206, Savannah, GA 31402-2206; phone: (800) 810-4853; email: pubs@gulfstream.com ; website: gulfstream.com/en/customer-support/ . 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. (j) Material Incorporated by Reference None. Issued on January 18, 2023. Christina Underwood, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-01164 Filed 1-23-23; 8:45 am]BILLING CODE 4910-13-P
