What was found
THE APU SHUTDOWN PRIOR TO ENGINE START. THE APU WOULD NOT RESTART. *S/D* THE SURGE CONTROL VALVE WAS DEFECTIVE AND REPLACED, OPERATIONS CHECK NORMAL. NO OTHER APU DISCREPANCIES HAVE OCCURRED SINCE THIS INCIDENT.
- Difficulty date
- January 26, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N663UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27160
- Engine
- Pwa PW4060
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Surge Valve
- Part number
- 97980610
- Condition
- Defective
- Location
- Apu
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.