What was found
THE CREW REPORTED THAT PACK 1 AND PACK 2 SMELLED LIKE BURNING OIL WHEN ON, ENGINE BLEEDS IN FLIGHT. THE ACFT LANDED WITHOUT INCIDENT, WHERE MAINTENANCE INSPECTED THE ACFT AND FOUND EVIDENCE OF APU INGESTION OF ANTI-ICE FLUID, OPERATIONALLY TESTED BOTH PACKS USING ENGINE BLEEDS WITH NO SMELL NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.