What was found
CREW REPORTED, WHILE ON THE GROUND WITH APU RUNNING THE NR 2 A/C PACK OVERTEMPED WHILE IN AUTO POSITION AND THE CABIN FILLED WITH SMOKE. MX FOUND THE NR 2 A/C PACK HAD FAILED AND REPLACED THE UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED, WHILE ON THE GROUND WITH APU RUNNING THE NR 2 A/C PACK OVERTEMPED WHILE IN AUTO POSITION AND THE CABIN FILLED WITH SMOKE. MX FOUND THE NR 2 A/C PACK HAD FAILED AND REPLACED THE UNIT.