# Proposed AD 2002-SW-39-AD: Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-14-18
- Products: Sikorsky
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 7, 2003, 68 FR 6382
- Comments due: April 8, 2003
- Became: [AD 2003-14-18](https://openairdocs.org/ad/2003-14-18)
- Docket: 2002-SW-39-AD
- FR document: 03-3031
- Official PDF: https://openairdocs.org/files/sha256/b4/73/b473da07591c3182536604c8f1d466244ca9b8fe3587b7a7898b2f3620dd1b0e (from https://www.govinfo.gov/content/pkg/FR-2003-02-07/pdf/03-3031.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/02/07/03-3031/airworthiness-directives-sikorsky-aircraft-corporation-model-s76a-b-and-c-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3566CD9A724E349C86256CC6005198BC.0001
- Page: https://openairdocs.org/proposed/2002-SW-39-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C helicopters. The AD would require removing non-conforming main landing gear brake discs (discs) and replacing them with different part-numbered airworthy discs. It would also require revising the Rotorcraft Flight Manual (RFM) to adjust takeoff and landing distances until the discs are replaced. This proposal is prompted by the manufacture of some discs using inferior materials. The actions specified by the proposed AD are intended to prevent reduced braking performance and subsequent loss of control of the helicopter.

## Notices in this docket

- Feb 7, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-3031, comments due Apr 8, 2003 (https://www.federalregister.gov/documents/2003/02/07/03-3031/airworthiness-directives-sikorsky-aircraft-corporation-model-s76a-b-and-c-helicopters)

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