What was found
AFTER T/O LANDING GEAR WOULD NOT RETRACT. THIS WAS CONFIRMED ON OVHD PANEL AS WELL. INTERROGATED MTP AND GOT 28V GEAR PWR SUPPLY 1 LOSS LOGGED AND LIKEWISE FOUND RELAYS AND RETRACT CTL CB OF LDG PROX DETECTOR POPPED OUT. FOLLOWED T/S PER TSM 32-30-00 FIG 109 AND RESET SAID CB, NO POPPING OUT AND UNABLE TO DUPLICATE THIS TIME. PERFORMED NORMAL EXTENSION AND RETRACTION ADJ/TEST USING LDG SAFETY RELAY SIMULATOR TEST SET AND DUPLICATED POPPING OF CB IN FLIGHT CONFIGURATION. FURTHER T/S FOUND LDG GEAR CTL MODULE DEFECTIVE. REMOVED AND REPLACED LDG GEAR CTL MODULE PER MM 32-31-11. PERFORMED OPS TEST PER MM 32-31-00-5, SATISFACTORY AND NO CB POPPING OUT NOTICED ON BOTH SYSTEM 1 AND 2.