What was found
APU SHUTDOWN AT GATE UNABLE TO RESTART. FOUND APU SURGE VALVE SOLENOID DAMAGE. REPLACED APU SURGE VALVE REF MM 49-53-01. BITE CONTROLLER MINIFLAG 9 REMOVED AND REPLACED LOAD COMPRESSOR INLET TEMP SENSOR AS PRECAUTION, APU OPS NORMAL.
- Difficulty date
- November 3, 2012
- Submitted
- November 15, 2012
- Operation
- Air carrier
- Aircraft
- N544UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25322
- Aircraft time
- 78,960 hours, 22,740 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4960 · APU Controls
- Part
- Control Valve
- Part number
- 97980612
- Part serial
- 170
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.