As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU DID NOT START, TRIED TWO TIMES. ACFT GROUNDED. APU BITE TEST SHOWS MAINTENANCE MESSAGE 49-15004 AND 49-72104. ACCOMPLISHED FIVE SUCCESSFUL APU STARTS BOTH WITH AND WITHOUT GROUND POWER. ALL STARTS NORMAL. BITE TEST SHOWS NO CURRENT FAULTS AND NO FAULTS PREVIOUS 5 STARTS. NO HISTORY NEW ACFT IAW 49-11-00-860-801.