As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO DUCT PRESSURE DURING APU OPERATION.(<P>ITEM TRANSFERRED TO MDDR# 107913 PER DDG 49-11-01-01 (APU PNEUMATIC INOP).</P><P>NOTE PERFORMED INITIAL TS BITE ECU SHOWING P2 SENSOR FAULY. TS SHOWING WIRE TO P2 SENSOR PIN 1 OPEN. NEED FURTHER TS AND REPAIR BROKEN WIRE TO P2 SENSOR. TROUBLESHOOT SYSTEM, FOUND APU WIRING HARNESS BAD, REMOVED, REPLACED AND PERFORMED GOOD OP'S CHECK IAW MM 49-11-00.<BR /></P>)