As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU OIL QTY STATUS MESSAGE FOLLOWED BY SMOKE IN THE COCKPIT. PERFORMED AIR CONDITIONING SYSTEM OIL CONTAMINATION REMOVAL IAW AMM 21-00-01-2, AND AMM 05-51-50-2. DID NOT NOTICE ANY SMOKE OR FUMES DURING ENGINE OPERATION AND TAXI. R & R THE APU, OPS AND LEAK CHECKED GOOD, OK FOR SERVICE.