As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: APU RUNNING PLANE WAS ON APU POWER AND APU BLEED SELECTED. THE POWER DISRUPTED AND THERE WAS A BRIEF SMELL OF SMOKE AND SMOKE WAS VISIBLE IN THE CABIN. **SUPPLEMENTAL REPORT FOR (AALA202409046642): REMOVE AND REPLACED APU, OPERTIONAL CHECK GOOD NO MORE SOF**(CLOSED).