As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG MUSTY- MOLDY WET ODOR THROUGHOUT A/C DURING TAKEOFF CLIMB TO 15,000 FEET AND DECENT FROM 15,000 TO TOUCHDOWN. INSPECTED APU COMPARTMENT NO EVIDENCE OF LEAK RAN APU WITH BOTH PACKS FOR A 2HR PERIOD AND NO UNUSUAL ODOR NOTED. PER TASK 49-16-00-100-801-A CLEANED APU INTAKE SYSTEM FROM PREVIOUS OIL RESIDUE. PER AMM 21-21-00 AND 21-22-00. A/C OK FOR SERVICE.