What was found
WHILE IN FOR C-CHECK, MAINTENANCE REPORTED FWD ENTRY DOOR UPPER GATE CORRODED AROUND LOWER RIV-NUTS AND EXTERNAL EDGES CORROSION (C53-224-01.06-01). REMOVED AND REPLACED FWD ENTRY DOOR UPPER GATE IAW UPS SRM 51-10-1, 51-10-2, 51-10-3 AND UPS MM 52-11-00.