# AD 75-04-09: Landing Gear Actuator

- Type: Airworthiness directive
- Status: Current
- Products: Mooney M20C, M20E and M20F
- Effective: March 20, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2127
- Registered aircraft: 2,831 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E4A5B25B9961B1886256E12004987F8.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-04-09

## The airworthiness directive

75-04-09 MOONEY: Amendment 39-2091 as amendment by Amendment 39-2127. Applies to Models M20C, M20E, and M20F airplanes manufactured after October 1974 with the following serial numbers on which the landing gear actuator, P/N LA11C2110, manufactured by International Telephone and Telegraph Corporation, is installed:

Model M20C: 20-0037, 0038, 0039, 0040, 0041, 0042, 0043, 0044, 0045, and 0046;

Model M20E: 21-0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, 0058, 0059, and 0060;

Model M20F: 22-0065, 0066, 0067, 0068, 0069, 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, and 0078.

Compliance is required prior to further flight except that airplanes may be flown to a facility for actuator replacement after fixing the landing gear in the extended position in accordance with instructions included in Mooney Aircraft Corporation Service Bulletin M20-191, dated January 28, 1975, or later FAA approved revision, or an FAA approved equivalent procedure.

To prevent further failures, replace the International Telephone and Telegraph Corporation P/N LA11C2110 landing gear actuator with a Mooney Aircraft Corporation P/N 950227-501 landing gear actuator in accordance with Mooney Aircraft Corporation Service Bulletin M20-191, dated January 28, 1975, or later FAA approved revision, or by an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas.

Amendment 39-2091 became effective on February 20, 1975.

This amendment 39-2127 becomes effective on March 20, 1975.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A3](https://openairdocs.org/tcds/2A3): Mooney International Corporation; names 3 of 17 models: M20F, M20E, M20C

## 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: 2,831 (2,831 by airframe model, 0 by engine model)
- Makers: Mooney 2,808, Aerostar Acft Corp Of Texas 23

Models with the most aircraft:

- [Mooney M20C](https://openairdocs.org/model/mooney-m20c): 1,258 aircraft (airframe model)
- [Mooney M20E](https://openairdocs.org/model/mooney-m20e): 829 aircraft (airframe model)
- [Mooney M20F](https://openairdocs.org/model/mooney-m20f): 721 aircraft (airframe model)
- [Aerostar Acft Corp Of Texas M20E](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20e): 9 aircraft (airframe model)
- [Aerostar Acft Corp Of Texas M20F](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20f): 8 aircraft (airframe model)
- [Aerostar Acft Corp Of Texas M20C](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20c): 6 aircraft (airframe model)

All 6 models: https://openairdocs.org/ad/75-04-09/models.md
Every aircraft: https://openairdocs.org/ad/75-04-09/aircraft.md

Its text cites no advisory circulars or STCs.

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