As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ODOR LIKE FAILING BEARING IN COCKPIT. CHRONIC WRITE-UP. ACP FULL INSPECTION IAW FI M 21-00-01 SMOKE OR FUMES. RAN ENGINES INDEPENDANTLY WITH PACKS ISOLATED. RAN APU AND PACKS. DID VISUAL OF ALL ASSOCIATED SYSTEM FOR HYD OR OIL LEAKS. NO OBVIOUS LEAKS OR CRACKS FOUND. COULD NOT DETECT SMELL OR REPEAT DEFECT ON GROUND. NO KNOWN SORCE. PACKS OPERATED NORMAL.