As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU NO START 2 ATTEMPTS EGT 780 - RPM 20 PERCENT. STARTED APU, NOTED APU BAT VOLTS WENT TO 14 DURING START. SUGGEST REPLACING APU BAT AND CHARGER. BIT APU CONTROLLER, GOT LOP FAULT--LOW OIL PRESS. FOUND OIL QTY LOW--ADDED 1QT. APU STARTED NORMALLY.