# AD 58-22-02: Landing Gear Trunnion Shaft

- Type: Airworthiness directive
- Status: Current
- Products: Thompson Aircraft Sales T-28A
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4F41F1BAA1790DD886256A45006A9657.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/58-22-02

## The airworthiness directive

58-22-02 NORTH AMERICAN: Applies to all Model T-28A Aircraft Certificated in the Restricted Category.

Inspect the main landing gear trunnion shaft every 200 hours with a borescope or by an equivalent method for fatigue cracks emanating from the bolt holes. Replace all defective shafts.

(USAF T.O. 1T-28A-6 Page 39, Item 11, covers this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS AR-30](https://openairdocs.org/tcds/AR-30): Thompson Aircraft Sales; names 1 of 1 models: T-28A

## 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: 2 (2 by airframe model, 0 by engine model)
- Makers: North American-Martin 1, North American/Walker 1

Models with the most aircraft:

- [North American-Martin T-28A](https://openairdocs.org/model/north-american-martin-t-28a): 1 aircraft (airframe model)
- [North American/Walker T-28A](https://openairdocs.org/model/north-american-walker-t-28a): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/58-22-02/models.md
Every aircraft: https://openairdocs.org/ad/58-22-02/aircraft.md

Its text cites no advisory circulars or STCs.

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