As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS ODOR IN CABIN. ON DESCENT FA AT 3L DOOR PUT ON OXYGEN MASK BECAUSE SMELL WAS SO BAD. LIGHT MUSTY SMELL ON TAKE OFF, NOT ENOUGH FOR OXYGEN MASK. MAINTENANCE ACCOMPLISHED SMOKE ODOR FUMES INITIAL TROUBLESHOOTING IAW JOB CARD 33L00021001 WITHOUT FINDINGS. NO EVIDENCE OF OIL OR FLUID LEAK. ENG + APU OIL LEVELS OK.