As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN THE BACK OF THE AIRCRAFT ACCOMPANIED BY HOT AIR AND WARM FLOOR. CLOSED APU BLEED VALVE HEAT AND DEBRIS BEGAN TO DISSIPATE FOUND APU BLEED DUCT IN AFT CARGO BIN JUST FWD OF PRESSURE BULKHEAD WITH A 3/8 INCH HOLE AT MOUNT CLAMP FWD TO MEL PER 36-11-04. REMOVED AND REPLACED APU AIR DUCT FORWARD OF 1720 BULKHEAD AND S DUCT AFT OF BULKHEAD PER 757 AMM 36-11-01. LEAK CHECK GOOD.