As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HOT ELECTRICAL ODOR DETECTED BY ALL CREW STRONGEST PRESCENCE HEAD LEVEL AND NEAR CPB1, 3 APU WAS RUNNING WITH GENERATOR ON AND BLEEDS ENG-OFF ODOR IN COCKPIT FIRST THEN GALLEY APU RUN TIME 40 MINS ODOR LINGERED 3-5 MIN AFTER SHUTDOWN. OPERATED APU WITH PACKS & BLEEDS ON FOR APPROX 1 HR. COULD NOT DUP SMELL. OPS CHECK GOOD IAW AMM 49-10-00.