# Proposed AD FAA-2006-26107: Carson Helicopters, Inc.; Croman Corporation; Sikorsky Aircraft Corporation; and Siller Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-10-16
- Products: Carson Helicopters, Inc., Croman Corporation, Sikorsky Aircraft Corporation, Siller Helicopters
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: March 15, 2021, 86 FR 14285
- Comments due: October 30, 2006
- Became: [AD 2021-10-16](https://openairdocs.org/ad/2021-10-16)
- Docket: FAA-2006-26107 (https://www.regulations.gov/docket/FAA-2006-26107, where comments are filed)
- Project: 2004-SW-30-AD
- FR document: 2021-05150
- Official PDF: https://openairdocs.org/files/sha256/f6/0b/f60b946339d2c09ceda7de9a392e6acd6e2a3f234f9e83a715ffcd379a088c25 (from https://www.govinfo.gov/content/pkg/FR-2021-03-15/pdf/2021-05150.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/03/15/2021-05150/airworthiness-directives-carson-helicopters-inc-croman-corporation-sikorsky-aircraft-corporation-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F7AA33F4C1414E5A8625869A0079C4AA.0001
- Page: https://openairdocs.org/proposed/FAA-2006-26107

## Summary

The FAA is revising an earlier proposal for all Sikorsky Aircraft Corporation Model S-61 A, D, E, and V helicopters; Croman Corporation Model SH-3H helicopters, Carson Helicopters, Inc. Model S- 61L helicopters; and Siller Helicopters Model CH-3E and SH-3A helicopters. This action revises the notice of proposed rulemaking (NPRM) by adding camshaft and gear housing part numbers that need to be marked and clarifying the applicability and certain compliance times. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over that in the NPRM, the FAA is reopening the comment period to allow the public the chance to comment on these changes.

## Notices in this docket

- Oct 30, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-18147, comments due Dec 29, 2006 (https://www.federalregister.gov/documents/2006/10/30/E6-18147/airworthiness-directives-sikorsky-aircraft-corporation-model-s-61-a-d-e-and-v-croman-corporation)
- Mar 15, 2021: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document 2021-05150, comments due Oct 30, 2006 (https://www.federalregister.gov/documents/2021/03/15/2021-05150/airworthiness-directives-carson-helicopters-inc-croman-corporation-sikorsky-aircraft-corporation-and)

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