# AD 79-11-06: Landing Gear Selector Lever

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-23, PA-23-160, PA-23-235, PA-23-250, PA-23-250 (Navy UO-1) and PA-E23-250
- Effective: August 29, 1979
- Published: August 30, 1979
- Issued: August 15, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-3545
- Registered aircraft: 1,267 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1DB73087314FBC5886256E120055A5F9.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/79-11-06

## The airworthiness directive

79-11-06 PIPER: Amendment 39-3481 as amended by Amendment 39-3545. Applies to all PA-23 series aircraft, certificated in all categories, which have landing gear selector lever, P/N 752303, installed.

To prevent possible failure of the landing gear selector lever, Piper Part No. 752303 accomplish the following:

a. Within the next 50 hours in service after the effective date of this AD, unless already accomplished, inspect the landing gear selector lever in accordance with Instructions Section in Piper S/B No. 635 steps (1) through (4) or equivalent inspection.

b. If cracks are found, replace the landing gear selector lever with lever Piper P/N 761213 or equivalent before further flight.

c. If no cracks are found, repeat the inspection in (a) at intervals not to exceed 100 hours in service. The requirements of this AD may be cancelled upon installation of landing gear selector lever Piper P/N 761213 or equivalent.

d. Equivalent inspections and replacementsmust be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

e. Upon submission of substantiating data by an owner or operator through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, Eastern Region, may adjust the inspection intervals specified in this AD.

Amendment 39-3481 was effective June 5, 1979.

This Amendment 39-3545 is effective August 29, 1979.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A10](https://openairdocs.org/tcds/1A10): Piper Aircraft Inc.; names 5 of 6 models: PA-23-160, PA-23-235, PA-E23-250, PA-23-250 (Navy UO-1), PA-23

## 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: 1,267 (1,267 by airframe model, 0 by engine model)
- Makers: Piper 1,267

Models with the most aircraft:

- [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250): 894 aircraft (airframe model)
- [Piper PA-23-160](https://openairdocs.org/model/piper-pa-23-160): 188 aircraft (airframe model)
- [Piper PA-23](https://openairdocs.org/model/piper-pa-23): 155 aircraft (airframe model)
- [Piper PA-23-235](https://openairdocs.org/model/piper-pa-23-235): 25 aircraft (airframe model)
- [Piper PA-23-250 (6PCLM)](https://openairdocs.org/model/piper-pa-23-250-6pclm): 5 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/79-11-06/models.md
Every aircraft: https://openairdocs.org/ad/79-11-06/aircraft.md

Its text cites no advisory circulars or STCs.

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