# AD 85-11-06: Control Loss

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-38-112
- Effective: May 30, 1985
- Published: May 30, 1985
- Issued: May 15, 1985
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-5069
- Registered aircraft: 442 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C0E57F03A05B1847862569A6005C9CF2.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/85-11-06

## The airworthiness directive

85-11-06 PIPER AIRCRAFT CORPORATION: Amendment 39-5069. Applies to Model PA-38-112 (TOMAHAWK), (Serial Numbers 38-78A0001 thru 38-82A0122) airplanes certificated in any category.

Compliance: Required within the next 50 hours time-in-service after the effective date of this AD, unless already accomplished.

To prevent the loss of control, accomplish the following:

  (a) For Serial Numbers 38-78A000I through 38-79A1160 airplanes, modify the control wheel shaft bushing in accordance with the instructions in Piper Service Bulletin No. 661, dated August 22, 1979.

  (b) For Serial Numbers 38-78A0001 through 38-82A0122 airplanes, modify the elevator control travel in accordance with the instructions in Piper Service Bulletin No. 800, dated November 19, 1984.

  (c) Airplanes may be flown in accordance with Federal Aviation Regulation 21.197 to a location where the AD may be accomplished.

  (d) An equivalent means of compliance with this AD may be used if approved bythe Manager, Atlanta Aircraft Certification Office, 1075 Inner Loop Road, College Park, Georgia 30337; telephone (404) 763-7428.

All persons affected by this directive may obtain copies of the documents referred to herein upon requests to Piper Aircraft Corporation, Post Office Box 1328, Vero Beach, Florida 32961, or FAA, Office of Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective on May 30, 1985.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A18SO](https://openairdocs.org/tcds/A18SO): Piper Aircraft Inc.; names 1 of 1 models: PA-38-112

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 442 (442 by airframe model, 0 by engine model)
- Makers: Piper 442

Models with the most aircraft:

- [Piper PA-38-112](https://openairdocs.org/model/piper-pa-38-112): 442 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/85-11-06/models.md
Every aircraft: https://openairdocs.org/ad/85-11-06/aircraft.md

Its text cites no advisory circulars or STCs.

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