# AD 79-05-10: Wheel Well

- 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
- Effective: March 15, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-3432
- Registered aircraft: 7 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/419F5CE89835C333862569A8006F28D1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/79-05-10

## The airworthiness directive

79-05-10 CURTISS-WRIGHT: Amendment 39-3432. Applies to all C-46 Series Aircraft certificated in all categories.

Compliance is required within the next 100 hours' time in service after the effective date of the AD unless already accomplished.

To prevent an engine fire from entering the wheel well area through the nacelle ram air scoop(s), accomplish the following:

Remove the wheel well ram air scoop(s) located on each engine nacelle just aft of the firewall and seal the hole(s) with the same type material and fasteners as used in the affected nacelle area. Acceptable repair methods may be found in AC 43.13-1A, Chapter 2, or in USAF T.O., AN 01-25LA-3, Section VI. An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region.

This amendment becomes effective March 15, 1979.

## 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/79-05-10/models.md
Every aircraft: https://openairdocs.org/ad/79-05-10/aircraft.md

## Related documents

- [AC 43.13-1B CHG 1 Ed Update](https://openairdocs.org/ac/43.13-1): Acceptable Methods, Techniques, and Practices—Aircraft Inspection and Repair. Cited as AC 43.13-1A in the AD's requirements

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