# AD 81-04-10: Cyclic Stick Boots

- Type: Airworthiness directive
- Status: Current
- Products: Kawasaki Heavy Industries KV107-II and KV107-IIA
- Effective: February 26, 1981
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-4045
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/69A233398B96159786256A4E004837B6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/81-04-10

## The airworthiness directive

81-04-10 KAWASAKI HEAVY INDUSTRIES, LTD.: Amendment 39-4045. Applies to Models KV107-II and KV107-IIA helicopters, certificated in all categories, with pilot or copilot cyclic stick boots, P/N 107S2226-9, installed.

Compliance required as indicated, unless already accomplished.

To prevent possible restriction of cyclic stick travel, which could result in an unsafe flight condition, accomplish the following:

  (a) Within the next 25 hours time in service after the effective date of this AD, loosen the velcro tape and camloc fasteners securing the pilot and copilot cyclic stick boots, P/N 107S2226-9, and remove the boots.

  (b) Remove the two rivets which attach the forward spring, P/N 107S2226-12, to the forward end of the boot base and discard the forward spring.

  (c) Install washers and new rivets to plug the resulting two empty holes in the boot base.

  (d) Reinstall the pilot and copilot stick boots.

  (e) In accordance with FAR Sections 21.197 and 21.199, the helicopter may be flown to a base where the modification can be accomplished.

This amendment becomes effective February 26, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.