As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT CHECK, AN AUDIBLE PNEUMATIC LEAK AND HIGH TEMPERATURE IN CABIN PASSENGER AT ROW 18A, B, C WERE DETECTED. MAINTENANCE PERFORMED A REVISION DETECTING APU PNEUMATIC DUCT PERFORATED. THE APU PNEUMATIC DUCT WAS REPLACED IAW AMM 36-13-01, TESTED CORRECT.