What was found
LANDING GEAR WOULD NOT RETRACT. LGCIU 1 & LGCCIU SYS 1 GROUND SUPPLY CIRCUIT BREAKERS TRIPPED DURING RETRACTION. FOUND SAFETY VALVE GREEN SYSTEM 49GA GETS EXTREMELY HOT DURING GEAR SWING. SUSPECT PROBLEM WITH CIRCUIT BREAKERS C-09 AND C-034 POPPING. REMOVED AND REPLACED LANDING GEAR SAFETY VALVE. ALSO REPLACED NOSE LANDING GEAR DOOR UPLOCK ASSEMBLY AND CONNECTOR FOR SENSOR 30GA. PERFORMED AIRCRAFT JACKING PER JOB CARD 26L0003201. GEAR EXTENDS AND RETRACTS NORMALLY PER AMM 32-30-00. NO CIRCUIT BREAKERS POPPED AFTER SEVERAL GEAR SWINGS.