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.)