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Federal Register / Vol. 86, No. 160 / Monday, August 23, 2021 / Proposed Rules flange P/N G5202201 mounted or having been mounted on pulley 12 screws P/N
G5210100 or G5210101, installed on cooling fan P/N G5200001, 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 Helicopteres Guimbal Cabri G2 Maintenance Manual MM and Instructions for Continued Airworthiness J70002 Issue 06, Section C, Airworthiness Limitations, dated December 6, 2018 MM J70002 Issue 06, sub section 52A10 Cooling Fan Inspection, paragraphs c through d. If any crack is found, before further flight, remove the cooling fan front flange from service.
ii Cooling fan front flange P/N G5202
200 mounted on pulley 12 screws P/N G52
10100 or G5210101; and cooling fan front flange P/N G5202201 mounted or having been mounted on pulley 12 screws P/N
G5210100 or G5210101, installed on cooling fan P/N G5200001, 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 MM J70002 Issue 06, sub section 52
A10 Cooling Fan Inspection, paragraphs c through d. If any crack is found, before further flight, remove the cooling fan front flange from service.
iii Cooling fan front flange P/N G5202
201 mounted on pulley 24 screws P/N G52
10102 and having never been mounted on pulley 12 screws P/N G5210100 or G52
10101, installed on cooling fan P/N G52
00002: 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 MM J70002, Issue 06, sub section 52
A10 Cooling Fan Inspection, paragraphs c through d. If any crack is found, before further flight, remove the cooling fan front flange from service.
iv For helicopters with tail boom P/N
G6500101, G6500102 or G6500103
and subsequent installed: Before further flight after the effective date of this AD, paint or verify the tail boom upper surface in accordance with MM J70002, Issue 06, sub section C23 Tail Structure Paint, as applicable to your helicopter.

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h Credit for Previous Actions This paragraph provides credit for the actions specified in paragraph g2i, ii and iii of this AD, if those actions were performed before the effective date of this AD
using Helicopteres Guimbal Cabri G2 MM
and Instructions for Continued Airworthiness J70002 Issue 05.1, Section C, Airworthiness Limitations, dated October 30, 2015, sub section 52A10 Cooling Fan Inspection, paragraphs c through d.

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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 j1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
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 2287330; email andrea.jimenez@faa.gov.
2 For service information identified in this AD, contact Helicopteres Guimbal, Basile Ginel, 1070, rue du Lieutenant Parayre, Aerodrome dAix-en-Provence, 13290 Les Milles, France; telephone 3304423910
88; email basile.ginel@guimbal.com; web https www.guimbal.com. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 2225110.
3 The subject of this AD is addressed in European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD 20190025, dated February 4, 2019. You may view the EASA AD on the internet at https www.regulations.gov in Docket No. FAA20210688.
Issued on August 16, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202117944 Filed 82021; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210689; Project Identifier AD202001589R
RIN 2120AA64

Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters Federal Aviation Administration FAA, DOT.

AGENCY:

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47041

Notice of proposed rulemaking NPRM.

ACTION:

The FAA proposes to adopt a new airworthiness directive AD for certain Sikorsky Aircraft Corporation Sikorsky Model S92A helicopters.
This proposed AD was prompted by a cracked main rotor stationary swashplate assembly swashplate assembly. This proposed AD would require visually inspecting the swashplate assembly at specified intervals and depending on the results, removing the swashplate assembly from service. The FAA is proposing this AD
to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by October 7, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202 4932251.
Mail: U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact your local Sikorsky Field Representative or Sikorskys Service Engineering Group at Sikorsky Aircraft Corporation, 124 Quarry Road, Trumbull, CT 06611; telephone 1800
9464337 1800WingedS; email wcs_cust_service_eng.gr-sik@lmco.com.
Operators may also log on to the Sikorsky 360 website at https
www.sikorsky360.com. You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX
76177. For information on the availability of this material at the FAA, call 817 2225110.
SUMMARY:

Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210689; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, any comments received, and other information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
Jared Hyman, Aerospace Engineer,
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