# Proposed AD FAA-2014-0758: Kaman Aerospace Corporation (Kaman) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-14-04
- Products: Kaman Aerospace
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 3, 2014, 79 FR 59697
- Comments due: December 2, 2014
- Became: [AD 2015-14-04](https://openairdocs.org/ad/2015-14-04)
- Docket: FAA-2014-0758 (https://www.regulations.gov/docket/FAA-2014-0758, where comments are filed)
- Project: 2013-SW-062-AD
- FR document: 2014-23588
- Official PDF: https://openairdocs.org/files/sha256/7e/be/7ebe4ebd114ff458d1cdd132784918e4e10ee4b0453f077e420bf00f9ea9119e (from https://www.govinfo.gov/content/pkg/FR-2014-10-03/pdf/2014-23588.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/10/03/2014-23588/airworthiness-directives-kaman-aerospace-corporation-kaman-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/530BC964F9B9B19D86257D66004BA922.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0758

## Summary

We propose to adopt a new airworthiness directive (AD) for Kaman Model K-1200 helicopters with certain main rotor blades (MRB) installed. This proposed AD would require inspecting each MRB for a crack or damage. This proposed AD is prompted by a report that a crack was found on an MRB during a tear-down inspection. The proposed actions are intended to detect a crack in the MRB, which could lead to failure of the MRB and subsequent loss of control of the helicopter.

## Notices in this docket

- Oct 3, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-23588, comments due Dec 2, 2014 (https://www.federalregister.gov/documents/2014/10/03/2014-23588/airworthiness-directives-kaman-aerospace-corporation-kaman-helicopters)

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