What was found
AFTER PUSH BACK AIRCRAFT CABIN FILLED WITH SMOKE. AIRCRAFT RETURNED TO GATE. IT WAS DETERMINED THAT THE SMOKE WAS COMING FROM THE APU BLEED SYSTEM. THE APU WAS MEL''D.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER PUSH BACK AIRCRAFT CABIN FILLED WITH SMOKE. AIRCRAFT RETURNED TO GATE. IT WAS DETERMINED THAT THE SMOKE WAS COMING FROM THE APU BLEED SYSTEM. THE APU WAS MEL''D.