What was found
(AIRCRAFT NOT GROUNDED) APPROX HALFWAY THROUGH THE FLIGHT AT FL280. THE FA'S REPORTED THAT THERE WAS A MUSTY ODOR IN THE AFT CABIN WHICH THEN CLEARED APPROX. 10 MINS LATER. REFER TO REPORT SOF-500 / REF WO 510916 TASK CARD 21-000-002. DURING TASK CARD FOUND LOAD COMPRESSOR PLUG WITH THREADS DAMAGED INSIDE LOAD COMPRESSOR. REMOVED AND REPLACED APU PER AMM 49-11-11-400-04-A OPS TEST OK. PERFORM TC 21-000-003, (RESOLVED ON W/O: 511479 TASKCARD: NR-00001 ) COMPLIED WITH TC 21-000-003ITEM: 1COMPLIED WITH TC 21-000-003.