As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCRENANCY: PRIOR TO TURNING ON AC AIRCRAFTHAS NOTICABLE ODOR. AFTER APU START AC SMELL GOT WORSE SMELL IS NOT BELIEVED TO BE ASSOCIATED WITH APU OR BLEED. CORRECTIVE ACTION: T/S ODOR IN CP AND CABIN APU OIL SERVICE WAS WITHIN LIMITS AND RAN APU AND PACK 1&2 FOR 2 HOURS NO SMELL OR ODOR NOTICED IAW A320 TSM 05-50-00-810-931-A/END/