As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU SMOKE IN COCKPIT AND COMING OUT OF THE PACKS OUTSIDE ON APU START. RAN APU, REF JRH WITH ALL THREE PACKS OPERATING AT MULTIPLE TEMP SETTINGS WITH NO ABNORMAL ODORS IN COCKPIT OR CABIN. INSPECTED APU AREA AND PACK BAYS. NO DEFECTS NOTED. MEL REMOVED, A/C OK FOR SERVICE.