As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO STL DUE TO BURNT OIL SMELL AT 300FT AFTER GEAR RETRACTION. UNABLE TO DUPLICATE ODOR AT GATE RUNNING APU OR ENGINES. GATHERING PARTS AND P-TRACK FROM CARGO TO BEGIN FURTHER EVALUATION. FOUND GLYCOL IN RAM AIR INLET. REPLACED COALESCER BAGS AND DUCT BURN OUT. NO SMELL NOTED.(7585196)