As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT INTO CLT, CREW REPORTED THE AIR CONDITION SYSTEM STARTING STINKING, IT SMELLS LIKE A DIRTY SOCK. MAINTENANCE ACCOMPLISHED J/C 03L00021001. FOUND APU TACH GEN LEAKING OIL. REMOVED AND REPLACED SAME PER 49-61-61. ALSO, ENGINE BOROSCOPE FOUND NO OIL STREAKING OR DEFECTS.