# Proposed AD FAA-2023-0018: Sikorsky Aircraft Corporation Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-09-07
- Products: Sikorsky
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 17, 2023, 88 FR 2558
- Comments due: March 3, 2023
- Became: [AD 2023-09-07](https://openairdocs.org/ad/2023-09-07)
- Docket: FAA-2023-0018 (https://www.regulations.gov/docket/FAA-2023-0018, where comments are filed)
- Project: AD-2022-00883-R
- FR document: 2023-00698
- Official PDF: https://openairdocs.org/files/sha256/ab/a9/aba93063f40e53586c5a2ed7f02f419aea0aa020c9baa18041c12c0e4bc89df3 (from https://www.govinfo.gov/content/pkg/FR-2023-01-17/pdf/2023-00698.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/01/17/2023-00698/airworthiness-directives-sikorsky-aircraft-corporation-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-00698-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-0018

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2022-02-01, which applies to Sikorsky Aircraft Corporation Model S-92A helicopters with certain part-numbered main rotor stationary swashplate assemblies (swashplate assemblies) that have accumulated 1,600 or more total hours time-in-service (TIS) installed. AD 2022-02-01 requires visually inspecting the swashplate assembly at specified intervals and depending on the results, removing the swashplate assembly from service. Since the FAA issued AD 2022-02-01, the FAA determined it was necessary to expand the applicability and require more detailed inspections to address the unsafe condition. This proposed AD would retain the actions of AD 2022-02-01, expand the applicability, add a detailed recurring visual inspection, and require either eddy current inspections (ECI) or fluorescent penetrant inspections (FPI). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jan 17, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-00698, comments due Mar 3, 2023 (https://www.federalregister.gov/documents/2023/01/17/2023-00698/airworthiness-directives-sikorsky-aircraft-corporation-helicopters)

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