# AD 52-04-06: Cabin Heater Lights And Switch

- Type: Airworthiness directive
- Status: Current
- Products: Martin-Marietta 202 and 202A
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1EE614F7DDD2189F86256A3200584746.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/52-04-06

## The airworthiness directive

52-04-06 MARTIN: Applies to All Models 202 and 202A Aircraft.

Compliance required not later than May 1, 1952.

Relocate the cabin heater (1) fuel failure light, (2) low heat warning light and (3) MANUAL-OFF-AUTO switch to the cockpit.

(G. L. Martin Service Bulletin 110 issued for the 202A together with Trans World Airlines Engineering Orders Nos. 5422 and 5820 cover this same subject and can be used for both 202 and 202A.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-795](https://openairdocs.org/tcds/A-795): Martin-Marietta Corporation; names 2 of 2 models: 202A, 202

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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