As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU DID NOT START ON FIRST ATTEMPT (<P>PERFORMED BITE TEST OF APU AT ECU PREVIOUS START STOPPED ABORTED START FOR SPED SENSOR / # 2 SPEED SENSOR MEMORY CLEARED ECU BITE TEST NORMAL IAW FIM 49-11 FT 987 NORMAL 2 OPERATIONAL TEST NORMAL IAW 49-11-00/501 </P>)