As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#534, SFO-BOS. 'MUSTY ODOR NOTED BY FLIGHT CREW WHILE DESCENDING THROUGH FL 180 DESCENDING THROUGH 6000FEET OPEN WAS DESCRIBED AS MILD-MODERATE IN MID CABIN; REF LOG PAGE 3328457, ITEM 2 (REMOVED AND REPLACED APU OIL COOLER REF AMM 49-91-44)AND 3328490, ITEM 1 PERFORMED DECONTAMINATION PER INFO NOTICE 2017-1015F. NO ODOR HAS BEEN DETECTED AT THIS TIME. PROCEDURE FOR LEVEL III WAS FOLLOWED.'