What was found
AFTER APU START, INTRODUCED APU AIR, SMELLED ACRID PLACTIC SMELL AND CABIN STARTED FILLING WITH SMOKE. RAMP CREW REPORTED SEEING SMOKE AROUND TAIL AND HEARD A LOUD POP. REMOVED AND REPLACED APU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER APU START, INTRODUCED APU AIR, SMELLED ACRID PLACTIC SMELL AND CABIN STARTED FILLING WITH SMOKE. RAMP CREW REPORTED SEEING SMOKE AROUND TAIL AND HEARD A LOUD POP. REMOVED AND REPLACED APU.