As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING OIL SMELL AS APU BEGAN TO SUPPLY BLEED AIR AS WE TAXIED INTO THE RAMP. SMELL LASTED FOR 5 MINUTES & CLEARED. ACCOMPLISHED WORKCARD 0550-2001. NO ODORS DETECTED. AS PRECAUTIONARY PERFORMED WORKCARD 0550-2002 FOR APU SUSPECTED SOURCE, NO ODOR DETECTED WITH PARTICLE TESTER. NO GO ODI PREVENTION PROCEDURES REVIEWED WITH MCC A/C OK FOR SERVICE. (LP# 4319864)