What was found
PDX- SMOKE IN CABIN THAN APU SUDDENLY STOPPED. REMOVED AND REPLACED APU, OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX- SMOKE IN CABIN THAN APU SUDDENLY STOPPED. REMOVED AND REPLACED APU, OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.