What was found
(CAN) APU START UP MAIN AIRCRAFT BATTERY OVERTEMP/THERMAL RUNAWAY. SMOKE IN PASSENGER CABIN. CFR CALLED. REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) APU START UP MAIN AIRCRAFT BATTERY OVERTEMP/THERMAL RUNAWAY. SMOKE IN PASSENGER CABIN. CFR CALLED. REPLACED.