# Proposed AD FAA-2011-1115: Sikorsky Aircraft Corporation (Sikorsky) Model S-92A Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-08-01
- Products: Sikorsky
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 26, 2011, 76 FR 66207
- Comments due: December 27, 2011
- Became: [AD 2012-08-01](https://openairdocs.org/ad/2012-08-01)
- Docket: FAA-2011-1115 (https://www.regulations.gov/docket/FAA-2011-1115, where comments are filed)
- Project: 2010-SW-011-AD
- FR document: 2011-27670
- Official PDF: https://openairdocs.org/files/sha256/5c/ac/5cac910f10c759b3feaf0f592e06de63f9e4fab7a843ccfc7e29c22ffa134213 (from https://www.govinfo.gov/content/pkg/FR-2011-10-26/pdf/2011-27670.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/10/26/2011-27670/airworthiness-directives-sikorsky-aircraft-corporation-sikorsky-model-s-92a-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FCCC9DC2EB72124B86257935006FDA5E.0001
- Page: https://openairdocs.org/proposed/FAA-2011-1115

## Summary

This document proposes adopting a new airworthiness directive (AD) for the Sikorsky Model S-92A helicopters. This proposal would require revising the Operating Limitations section of the Sikorsky Model S-92A Rotorcraft Flight Manual (RFM). This proposal is prompted by the manufacturer's analysis of engine data that revealed the data was inaccurate in dealing with available above specification engine power margin. The actions specified by this proposed AD are intended to prevent the use of inaccurate engine performance data in calculating maximum gross weight by revising the Operating Limitations section of the RFM.

## Notices in this docket

- Oct 26, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-27670, comments due Dec 27, 2011 (https://www.federalregister.gov/documents/2011/10/26/2011-27670/airworthiness-directives-sikorsky-aircraft-corporation-sikorsky-model-s-92a-helicopters)

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