What was found
CHEMICAL, DIRTY SOCK PASSING 10,000' W/ THRUST AT IDLE. STRONG INTENSITY DURATION PERSISTENT FOR 12 MINUTES. DETECTED MORE AFT BUT THROUGHOUT A/C. LEVEL 2 SEVERITY. GROUNDED - YES. PERFORMED TSM 05-50-00-810-829-A, FOUND APU OIL FILL O-RING LOOSE, REF DMI 550496 T/S. IDLE RAN ENG 1 & 2 W/ PACKS 1 & 2 ISOLATED. FAINT ODOR ON INITIAL START UP OF PACK 1 W/ ENG 1. REF TSM 71-00-81-810-805-A. PERFORMED DECONTAMINATION LEVEL A. PER AMM 21-00-00-615-809. RAN BOTH ENGINES AND BOTH PACKS SEPERATELY. NO SIGN OF SMELL. RAN APU BLEED, NO SMELL. OK FOR SVC.