# Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters
> **Rule** · Final rule; request for comments. · Published 2004-07-07 · Effective 2004-07-22 · 69 FR 40764
## Document
- **Document number:** 04-15127
- **Category:** airworthiness
- **Manufacturer:** Kaman Aerospace Corporation Model K-1200
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 69 FR 40764
- **Publication date:** 2004-07-07
- **Effective date:** 2004-07-22
- **FAA docket:** Docket No. 2003-SW-46-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) for Kaman Aerospace Corporation (Kaman) Model K-1200 helicopters. This action requires certain initial and repetitive visual inspections of the main rotor blade (blade) grips for a crack. If a crack is found, this AD requires replacing the blade grip before further flight. This amendment is prompted by an accident involving the loss of all blades because of a crack in a blade grip on the upper surface around the bolthole. The actions specified in this AD are intended to prevent failure of a blade grip, loss of a blade, and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/07/07/04-15127/airworthiness-directives-kaman-aerospace-corporation-model-k-1200-helicopters)
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