# Airworthiness Directives; Kaman Aerospace Corporation Model K1200 Helicopters
> **Rule** · Final rule; request for comments. · Published 2000-01-24 · Effective 2000-02-08 · 65 FR 3583
## Document
- **Document number:** 00-1642
- **Category:** airworthiness
- **Manufacturer:** Kaman Aerospace Corporation Model K1200
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 65 FR 3583
- **Publication date:** 2000-01-24
- **Effective date:** 2000-02-08
- **FAA docket:** Docket No. 99-SW-72-AD
## Abstract

This document publishes in the Federal Register an amendment adopting Emergency Priority Letter Airworthiness Directive (AD) 99-26- 04, which was sent previously to all known U.S. owners and operators of Kaman Aerospace Corporation (Kaman) Model K1200 helicopters by individual letters. This AD requires, before the first flight of each day, inspecting for clutch assembly integrity. Replacing any unairworthy clutch assembly with an airworthy clutch assembly is required before further flight. This amendment is prompted by two incidents of engine adapter flange failure and loss of power to the main rotors. The actions specified by this AD are intended to prevent failure of the engine adapter flange, loss of power to the main rotors, and a subsequent forced landing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/01/24/00-1642/airworthiness-directives-kaman-aerospace-corporation-model-k1200-helicopters)
---
*AI Analytics · CC0 1.0*