2021-22-08: Powerplant 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: 2021-22-08 Hélicoptères Guimbal: Amendment 39-21781; Docket No. FAA-2021-0688; Project Identifier 2019-SW-025-AD. (a) Effective Date This airworthiness directive (AD) is effective January 13, 2022. (b) Affected ADs None. (c) Applicability This AD applies to Hélicoptères Guimbal (HG) Model Cabri G2 helicopters, certificated in any category. (d) Subject Joint Aircraft Service Component (JASC) Code: 7100, Powerplant System. (e) Unsafe Condition This AD was prompted by a notification of certain parts remaining in service beyond their fatigue life or beyond maintenance intervals required by the certification maintenance requirements (CMRs) of the Instructions for Continued Airworthiness. The FAA is issuing this AD to prevent failure of a part, which could result in loss of control of the helicopter. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Before further flight after the effective date of this AD, remove from service any part that has reached or exceeded its life limit, as specified in paragraphs (g)(1)(i) through (iii) of this AD, and thereafter remove from service any part on or before each part reaches its life limit: (i) The life limit for cooling fan front flange part number (P/N) G52-02-200 mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101; and cooling fan front flange P/N G52-02-201 mounted or having been mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101, installed on cooling fan P/N G52-00-001 or G52-00-002; is 2,200 total hours time-in-service (TIS). (ii) The life limit for cooling fan front flange P/N G52-02-201 mounted on pulley (24 screws) P/N G52-10-102 and having never been mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101, installed on cooling fan P/N G52-00-001 or G52-00-002, is 4,400 total hours TIS. (iii) The life limit for engine pulley ball bearing P/N HG61-0790 and HG61-1944, installed on engine pulley assembly P/N G51-14-1XX, is 2,200 total hours TIS. (2) Perform the following CMR tasks as follows: (i) Cooling fan front flange P/N G52-02-200 mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101; and cooling fan front flange P/N G52-02-201 mounted or having been mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101, installed on cooling fan P/N G52-00-001, and with 500 or more total hours TIS since new as of the effective date of this AD: Within 5 hours TIS after the effective date of this AD and thereafter at intervals not to exceed 50 hours TIS, or 70 engine start-stop cycles, whichever occurs first, inspect the cooling fan front flange for a crack in accordance with Section E, Maintenance Instructions, sub section 52-A-10 Cooling Fan Inspection, paragraph c), on page E-5-53, of Guimbal France Hélicoptères Guimbal Cabri G2 Maintenance Manual (MM) and Instructions for Continued Airworthiness, J70-002-Issue 06, dated December 6, 2018 (MM J70-002 Issue 06), except where MM J70-002 Issue 06 specifies to use a torchlight, use a flashlight. If any crack is found, before further flight, remove the cooling fan front flange from service. (ii) Cooling fan front flange P/N G52-02-200 mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101; and cooling fan front flange P/N G52-02-201 mounted or having been mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101, installed on cooling fan P/N G52-00-001, and with less than 500 total hours TIS since new as of the effective date of this AD: Before accumulating 500 total hours TIS since new and thereafter at intervals not to exceed 50 hours TIS, or 70 engine start-stop cycles, whichever occurs first, inspect the cooling fan front flange for a crack in accordance with Section E, Maintenance Instructions, sub section 52-A-10 Cooling Fan Inspection, paragraph c), on page E-5-53, of MM J70-002 Issue 06, except where MM J70-002 Issue 06 specifies to use a torchlight, use a flashlight. If any crack is found, before further flight, remove the cooling fan front flange from service. (iii) Cooling fan front flange P/N G52-02-201 mounted on pulley (24 screws) P/N G52-10-102 and having never been mounted on pulley (12 screws) P/N G52-10-100 or G52-10-101, installed on cooling fan P/N G52-00-002: Before accumulating 500 total hours TIS since new and thereafter at intervals not to exceed 100 hours TIS, inspect the cooling fan front flange for a crack in accordance with Section E, Maintenance Instructions, sub section 52-A-10 Cooling Fan Inspection, paragraph c), on page E-5-53, of MM J70-002 Issue 06, except where MM J70-002 Issue 06 specifies to use a torchlight, use a flashlight. If any crack is found, before further flight, remove the cooling fan front flange from service. (iv) For helicopters with tail boom P/N G65-00-101, G65-00-102 or G65-00-103 and subsequent installed: Before further flight after the effective date of this AD, paint or verify the tail boom upper surface in accordance with Section C, Airworthiness Limitations, sub section C-23 Tail Structure Paint, on page C-6, of MM J70-002 Issue 06, as applicable to your helicopter. (h) Credit for Previous Actions This paragraph provides credit for the actions specified in paragraphs (g)(2)(i) through (iii) of this AD, if those actions were performed before the effective date of this AD using Section E, Maintenance Instructions, sub section 52-A-10 Cooling Fan Inspection, paragraphs (c) and (d), of Guimbal France Hélicoptères Guimbal Cabri G2 MM and Instructions for Continued Airworthiness, J70-002 Issue-05.1, dated October 30, 2015. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation 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 International Validation Branch, send it to the attention of the person identified in paragraph (j)(1) of this AD. Information may be emailed to: [email protected]. (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. (j) Related Information (1) For more information about this AD, contact Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228-7330; email [email protected]. (2) Service information identified in this AD that is not incorporated by reference is available at the contact information specified in paragraphs (k)(3) and (4) of this AD. (3) The subject of this AD is addressed in European Aviation Safety Agency (now European Union Aviation Safety Agency (EASA) AD 2019-0025, dated February 4, 2019. You may view the EASA AD on the internet at https://www.regulations.gov in Docket No. FAA-2021-0688. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference 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 the AD specifies otherwise. (i) Page C-6 of Section C, Airworthiness Limitations, of Guimbal France Hélicoptères Guimbal Cabri G2 Maintenance Manual and Instructions for Continued Airworthiness, J70-002-Issue 06, dated December 6, 2018. (ii) Page E-5-53 of Section E, Maintenance Instructions, of Guimbal France Hélicoptères Guimbal Cabri G2 Maintenance Manual and Instructions for Continued Airworthiness, J70-002-Issue 06, dated December 6, 2018. (3) For service information identified in this AD, contact Hélicoptères Guimbal, 1070, rue du Lieutenant Parayre, Aérodrome d'Aix-en-Provence, 13290 Les Milles, France; telephone 33-04-42-39-10-88; email [email protected]; or at https://www.guimbal.com. (4) You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222-5110. (5) You may view this 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, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued on October 14, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021-26543 Filed 12-8-21; 8:45 am]BILLING CODE 4910-13-P