47-10-05 LOCKHEED: (Was Mandatory Note 6 of AD-763-3.) Applies Only to Model 49 Serial Numbers 2021 to 2088, Inclusive.
Compliance required prior to March 15, 1947.
Inspect landing gear selector valve (Bendix P/N 403875-0-1) installed in forward cargo compartment. Those valves bearing Serial Numbers 1 through 120 and identified by letter "R: following the serial number have been reworked to incorporate a new type poppet. All unreworked valves should be replaced with reworked valves. (LAC Service Instruction 049/SI-34 covers this same subject.)