# AD 65-22-02: Horizontal Stabilizer Trim System

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin 1329-23A and 1329-23D
- Effective: September 29, 1965
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-139
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C04967B1993C8A168625697500489084.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/65-22-02

## The airworthiness directive

65-22-02 LOCKHEED: Amdt. 39-139 Part 39 Federal Register September 29, 1965. Applies to Model 1329 Airplanes, Serial Numbers 5001 through 5063.

Compliance required within the next 10 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent uncontrolled pitch trim actuation, accomplish the inspection and repair as described in Lockheed Alert Service Bulletin No. 329-218, "Horizontal Stabilizer Trim System- Inspection of A-723L, A-723LA, A-723LD, and A-723N Stabilizer Trim Contactors," or perform an equivalent FAA-approved inspection and repair.

This directive effective September 29, 1965.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A15](https://openairdocs.org/tcds/2A15): Lockheed Martin Corporation; names 2 of 4 models: 1329-23D, 1329-23A

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.