# AD 55-07-02: Landing Gear Tube Reinforcement

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-22
- Published: December 4, 1956
- Issued: December 4, 1956
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 277 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2FED20D6142D0ECD8625698B0076471B.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/55-07-02

## The airworthiness directive

55-07-02 PIPER: Applies to All Model PA-22 Aircraft Except Serial Numbers 22-2377, 22-2379, 22-2385, 22-2388, 22-2389, 22-2391, 22-2394 and Up.

Compliance required by June 1, 1955.

Numerous instances have been reported of cracking in the leading edge of the streamlined tube of the landing gear at the point where the tube joins the inboard end of the axle. To prevent future failures, this joint should be reinforced by welding a steel strap reinforcement.

(Piper Service Letter No. 124 dated August 30, 1954, covers the same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A6](https://openairdocs.org/tcds/1A6): Piper Aircraft Inc.; names 1 of 8 models: PA-22

## 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: 277 (277 by airframe model, 0 by engine model)
- Makers: Piper 277

Models with the most aircraft:

- [Piper PA-22](https://openairdocs.org/model/piper-pa-22): 277 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/55-07-02/models.md
Every aircraft: https://openairdocs.org/ad/55-07-02/aircraft.md

Its text cites no advisory circulars or STCs.

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