As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON TAKE OFF AND INITIAL CLIMB WITH ENGINE ANTI-ICE ON, FLIGHT DECK AND CABIN CREW OBSERVED AN ODOR SIMILAR TO BURNING OIL SMELL. ODOR RAPIDLY DISSIPATED WHEN ENGINE ANTI ICE WAS SWITCHED OFF. ACCOMPLISHED SMOKE ODOR FUME INITIAL TROUBLESHOOTING JOB CARD 08L00021001. APU LEAKING OIL DETERMINED TO BE SOURCE OF ODOR. REPLACED APU PER JOB CARD 08C30049002. OPERATIONAL AND LEAK CHECK OF APU GOOD. NO ODORS IN CABIN.