As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AN APU INSPECTION, FOUND PNEUMATIC DUCT, FLEXIBLE DUCT FROM APU TO AIR SUPPLY DUCT TORN AND AFT CLAMP BROKEN. REPLACED THE FLEXIBLE PNEUMATIC DUCT ASSY AND CLAMPS ON APU AIR SUPPLY DUCT IAW AMM 49-53-01. LEAK AND OPERATIONAL CHECKED GOOD.