What was found
WHILE ON THE GROUND WITH THE APU RUNNING, SMOKE WAS OBSERVED IN THE CABIN. THE CREW IMMEDIATELY SHUT DOWN THE APU. THE TURBO COOLING FAN WAS FOUND SEIZED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE ON THE GROUND WITH THE APU RUNNING, SMOKE WAS OBSERVED IN THE CABIN. THE CREW IMMEDIATELY SHUT DOWN THE APU. THE TURBO COOLING FAN WAS FOUND SEIZED.