# AD 55-09-02: Terminal Assemblies

- Type: Airworthiness directive
- Status: Current
- Products: Airlift International C-46A, C-46D, C-46F, C-46R, C-46E, C-46A, C-46D, C-46E, C-46F, C-46A, C-46D, C-46F and 3 more
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 7 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A3A434601EAEDFBC862569A7007330E9.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/55-09-02

## The airworthiness directive

55-09-02 CURTISS-WRIGHT: Applies to all C-46 Series aircraft.

Compliance required as indicated.

  (1) For Models C-46A and C-46D.

At each 3,000 hours of operation inspect visually and at each major overhaul inspect by means of Zyglo or equivalent method control column base assemblies P/N 20-530- 3076-5, arm assemblies P/N 20-530-1049-1 and -3, terminal assemblies P/N 20-530-1286-1 and - 3, and upper terminal assemblies P/N 20-530-1059. Also inspect for cracks around the rivets which retain the assemblies to the torque tube P/N 20-530-1163-2.

  (2) For Models C-46E and C-46F.

Due to recent similar failures reported on these models, the assemblies corresponding to the above Model C-46A and C-46D assemblies must be similarly inspected.

All defective parts must be replaced.

This supersedes AD 51-14-2.

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A5](https://openairdocs.org/tcds/2A5): Tempo Design Corporation; names 2 of 2 models: C-46/CW20-T, Super C-46/CW20-T
- [TCDS 3A2](https://openairdocs.org/tcds/3A2): Airlift International Inc.; names 1 of 4 models: C-46R

## 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: 7 (7 by airframe model, 0 by engine model)
- Makers: Curtiss Wright 7

Models with the most aircraft:

- [Curtiss Wright C-46F](https://openairdocs.org/model/curtiss-wright-c-46f): 4 aircraft (airframe model)
- [Curtiss Wright C-46A](https://openairdocs.org/model/curtiss-wright-c-46a): 1 aircraft (airframe model)
- [Curtiss Wright C-46D](https://openairdocs.org/model/curtiss-wright-c-46d): 1 aircraft (airframe model)
- [Curtiss Wright C-46R](https://openairdocs.org/model/curtiss-wright-c-46r): 1 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/55-09-02/models.md
Every aircraft: https://openairdocs.org/ad/55-09-02/aircraft.md

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.