What was found
STRONG MUSTY ODOR DESCEND THRU 15,000 AT IDLE-PERFORMED CABIN ODOR INSPECTION PER TSM 05-50-00-810-831. USED SNIFFER AND COULD NOT DUPLICATE ODOR. ISOLATED APU, ENG 1, ENG 2, PACK 1 AND PACK 2 AND NO ODOR DETECTED. AIRCRAFT OK FOR CONTINUED SERVICE