As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 614 - ODOR IN CABIN. REMOVED AND REPLACED APU. OPERATIONAL AND LEAK CHECK GOOD. VENDOR REPORT INDICATED NO IMMEDIATE INDICATION OF OIL CONTAMINATION IN BLEED SYSTEM OR ISSUES WITH LOAD COMPRESSOR SEAL DURING BOROSCOPE. UNIT WAS STEAM CLEANED AND RETURNED TO SERVICE.