2021-26-02: Landing Gear System

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: 2021-26-02 Gulfstream Aerospace Corporation: Amendment 39-21860; Docket No. FAA-2021-0216; Project Identifier 2018-CE-061-AD. (a) Effective Date This airworthiness directive (AD) is effective January 14, 2022. (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 fatigue life. 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) Revise the ALS 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 1159SCL566-15. Note 2 to paragraph (g): Table 5 in Section 05-10-10 of the following aircraft maintenance manuals contains the life limit in paragraph (g) of this AD: Gulfstream GV Aircraft Maintenance Manual, Revision 53, dated March 15, 2021; Gulfstream G550 Aircraft Maintenance Manual, Revision 34, dated March 15, 2021; or Gulfstream G500-5000 Aircraft Maintenance Manual, Revision 34, dated March 15, 2021. (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 local Flight Standards District 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 local flight standards district office/certificate holding district office. (i) Related Information (1) For more information about this AD, contact Miral Patel, Aviation Safety Engineer, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337; phone: (404) 474-5590; fax: (404) 474-5606; email: miral.patel@faa.gov. (2) For service information identified in this AD, contact Gulfstream Aerospace Corporation, Technical Publications Dept., 500 Gulfstream Road, Savannah, GA 31402-2206; phone: (800) 810-4853; fax: (912) 965-3520; email: pubs@gulfstream.com; website: https://www.gulfstream.com/en/customer-support/. You may view this referenced service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. (j) Material Incorporated by Reference None. Issued on December 6, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021-26786 Filed 12-9-21; 8:45 am]BILLING CODE 4910-13-P