As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT, CREW REPORTED AN ODOR SOMETHING LIKE SMOKE IN THE COCKPIT. RELEASED FOR SERVICE APU BATTERY INOPERATIVE. APU INOPERATIVE. SWAPPED APU BATTERY TO MAIN BATTERY IAW AMM 24-31-01-04, AND AMM 24-31-03-4. MAIN BATTERY WORKS NORMAL. SWAPPED WITH APU BATTERY AND APU CHARGER.