What was found
PDX - BURNING OIL SMELL IN CABIN. MAINTENANCE CYCLES THE AIR CONDITIONING PACKS, RAN THE ENGINES, CYCLED THE ANTI-ICE SYSTEM AND RAN THE APU ALL WITH NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - BURNING OIL SMELL IN CABIN. MAINTENANCE CYCLES THE AIR CONDITIONING PACKS, RAN THE ENGINES, CYCLED THE ANTI-ICE SYSTEM AND RAN THE APU ALL WITH NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.