# AD 79-17-06: Main Landing Gear Clevis Pin

- Type: Airworthiness directive
- Status: Current
- Products: Textron 76
- Effective: August 27, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-3532
- Registered aircraft: 151 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C788C414F943938986256A080072FC35.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/79-17-06

## The airworthiness directive

79-17-06 BEECH: Amendment 39-3532. Applies to Model 76 (Serial Numbers ME-1 through ME-228) Airplanes certificated in all categories.

COMPLIANCE: Required as indicated unless already accomplished.

To prevent possible collapse of the main landing gear, accomplish the following:

A) Within the next twenty-five (25) hours time-in-service after the effective date of this AD, install a new part number MS20392-2C67 clevis pin, common to the main landing gear fork and the fork pin, in the left and right main landing gear in accordance with procedures in Beechcraft Service Instructions Number 1073.

NOTE: Installation of the new larger clevis pins requires a 3/16 (.1875) inch diameter carbide tip drill bit, drill press and a suitable drill press vise or "V" blocks and clamps to hold the fork pin while enlarging the clevis pin hole.

B) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished.

C)Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective August 27, 1979.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A29CE](https://openairdocs.org/tcds/A29CE): Textron Aviation Inc.; names 1 of 1 models: 76

## 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: 151 (151 by airframe model, 0 by engine model)
- Makers: Beech 151

Models with the most aircraft:

- [Beech 76](https://openairdocs.org/model/beech-76): 151 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/79-17-06/models.md
Every aircraft: https://openairdocs.org/ad/79-17-06/aircraft.md

Its text cites no advisory circulars or STCs.

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