What was found
MIA - FLT 277 - AFTER T/O, UNABLE TO RAISE GEAR,RETURNED MIA. REPLACED LT GEAR LEVELING CYL AND ACCOMP O/W INSPECTION WITH NO DEFECTS FOUND. ACCOMP FCF AND PROBLEM REPEATED. ADJUSTED PROX SENSORS FOR LT GEAR. ACCOMP GEAR RETRACT CHK WITH NO DEFECTS. A/C RETURNED TO SERV. PROBLEM REPEATED AND RETURNED MIA. BITE CHECK OF GEAR PROX BOX FAULTED SYS 1 AND 2 LT BOGIE BEAM PROX DETECTORS. REPLACED SENSORS 9GA AND 11GA AND ACCOMP L/G RETRACTION WITH NO DEFECTS FOUND. ACCOMP FCF AND PROB REPEATED. A/C FERRY MIA/JFK. REPLACED LT AND RT BOGIE TILT SWITCHES FOR SYS 1 AND 2, 9GA, 8GA, 11GA, 12GA AND ALL MOUNTS, TARGETS AND SUPPORT RODS. ACCOMP GEAR RETRACT CHECK WITH NO DEFECTS FOUND. ACCOMP FUNCTIONAL CHK FLT