As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WILL NOT START. AFTER EXTENSIVE TEST, REPLACED APU PER MM 49-11- 01 PG401.PERFORMED APU TEST PER JRH 2-6-15 AND PER UNIMATIC DISPLAY 2450 PERFORMANCE CHECK GOOD. VERIFICATION FLIGHT ACCOMPLISHED. APU STARTED NORMALLY. AC OK FOR SERVICE.