# AD 52-10-01: Electric Power System

- 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- Superseded by: Nothing supersedes this AD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/8B8230AE49EAB9D7862569A7006DE779.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/52-10-01

## The airworthiness directive

52-10-01 CURTISS-WRIGHT: Applies to all Model C-46 aircraft.

Compliance required as soon as possible, but not later than August 1, 1952.

To provide circuit protection for the leads to both ammeters in the electric power system, the following shall be accomplished:

In those aircraft having the ammeter shunts in the positive generator leads, install a circuit breaker or fuse in each ammeter lead as close as practicable to the shunt.

## 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/52-10-01/models.md
Every aircraft: https://openairdocs.org/ad/52-10-01/aircraft.md

Its text cites no advisory circulars or STCs.

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