As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3258 DISC: ON INTO DTW NOTICED DIRTY SOCK SMELL. C/A: APU IDENTIFIED AS SOURCE OF SMELL DUE TO OIL LEAK. C/W AMDS W/C 7900-2001,4900-2001. W/C'S 2100-2005 AND 0550-2002 IN WORK. NO SMELL AFTER PACK BURN. (WIP 854413 KR) COMPLETED W/C'S 2100-2005 AND 0550-2002 APU TO BE PLACED ON MEL (LP: 4600838)