What was found
CREW REPORTS APU AUTO SHUTDOWN WHILE AT THE GATE. AFTER TROUBLESHOOTING & DURING RESTART OF APU HAD A TAIL PIPE FIRE, SHUTDOWN APU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTS APU AUTO SHUTDOWN WHILE AT THE GATE. AFTER TROUBLESHOOTING & DURING RESTART OF APU HAD A TAIL PIPE FIRE, SHUTDOWN APU.