As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"FA'S REPORTED STRONG OILY ODER DECENDING THROUGH 7000FT. PACK 2 OFF. ODOR DISIPATED-ACCOMPLISHED TSM 05-50-00-810-831 FOR CABIN ODOR. PACKS RAN ON APU BLEED. ISOLATED PACKS. PACK #2 SUSPECT CONTAMINATED. INSPECTED PACKS & APU AREAS, NO VISIBLE SIGNS OF OIL LEAKS, RAN BOTH ENG 1&2 NO ODOR PRESENT. REF LP# 2856531-2 FOR PACK #2 DEFFERAL & LOCKOUT. A/C OK FOR SVC. MOC NOTIFIED."