52-04-06: Cabin Heater Lights And Switch
FAA order 52-04-06 is an airworthiness directive. The FAA's subject line: Cabin Heater Lights And Switch. System: cabin, seats and restraints.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Martin-Marietta Corporation
- Models
- 202, 202A
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (437 characters)
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.)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/52-04-06.json · aircraft systems.