# AD 81-15-07: Tension-torsion Strap Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Kawasaki Heavy Industries KV107-II and KV107-IIA
- Effective: August 25, 1981
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-4164
- Docket: 81-ASW-11
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FFD6E1A31BBD68D186256A4E0048454B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/81-15-07

## The airworthiness directive

81-15-07 KAWASAKI HEAVY INDUSTRIES, LTD. (KHI): Amendment 39-4164. Applies to Models KV107-II and KV107-IIA helicopters equipped with main rotor tension-torsion strap assemblies, P/N 107R2003-1, certificated in all categories (Airworthiness Docket No. 81-ASW-11).

Compliance required as indicated.

To prevent fatigue failure of the main rotor tension-torsion strap assemblies, remove from service tension-torsion strap assemblies, P/N 107R2003-1, on or before the accumulation of 27,800 hours' time in service and replace with a serviceable part that has less than 27,800 hours' total time in service.

This amendment becomes effective August 25, 1981.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H1PC](https://openairdocs.org/tcds/H1PC): Kawasaki Heavy Industries Limited; names 2 of 2 models: KV107-IIA, KV107-II

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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