# AD 75-15-07: Landing Gear System

- Type: Airworthiness directive
- Status: Current
- Products: Textron 99, 99A, A99A and B99
- Effective: July 25, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2268
- Registered aircraft: 40 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FC46F16D11A0F7DB86256A0800738CF5.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/75-15-07

## The airworthiness directive

75-15-07 BEECH: Amendment 39-2268. Applies to Models 99, 99A, A99A and B99 (Serial Numbers U-1 through U-163) airplanes which are equipped with the 99-8010-1P hydraulic landing gear system.

Compliance: Required as indicated, unless already accomplished.

To prevent main landing gear malfunction:

Within the next 100 hours' time in service after the effective date of this AD, modify the main landing gear system in accordance with Beechcraft Service Instructions 0743-231, or subsequent revisions, or any alternative modification approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective July 25, 1975.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A14CE](https://openairdocs.org/tcds/A14CE): Textron Aviation Inc.; names 4 of 12 models: A99A, B99, 99A, 99

## 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: 40 (40 by airframe model, 0 by engine model)
- Makers: Beech 40

Models with the most aircraft:

- [Beech 99](https://openairdocs.org/model/beech-99): 23 aircraft (airframe model)
- [Beech 99A](https://openairdocs.org/model/beech-99a): 11 aircraft (airframe model)
- [Beech B-99](https://openairdocs.org/model/beech-b-99): 6 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/75-15-07/models.md
Every aircraft: https://openairdocs.org/ad/75-15-07/aircraft.md

Its text cites no advisory circulars or STCs.

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