As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LEAKING HOT AIR AT ACM MAKING AFT EQUIPMENT BAY SUPER HOT AND OVERHEATING THE APU. ALSO THE MAIN BATTERY CHARGERS AND MAKING THE TWO CARGO FIRE BOTTLES DISCHARGE. (FLT 5240) REPLACED LEFT ACM IAW. P/N 782790-15 S/N ON 200102049 S/N OFF 200205163