What was found
APU FAILED AND FAILED TO RESTART. ACCOMPLISHED AN APU BITE IAW FIM 49-11 FT 958. FOUND REVERSE FLOW FAULT, ACCOMPLISHED FIM 49-11 FAULT TREE 965, REMOVED AND REPLACED THE APU SURGE CONTROL VALVE IAW AMM 49-53-01. OPS CHECKED GOOD.
- Difficulty date
- March 5, 2018
- Submitted
- March 15, 2018
- Operation
- Air carrier
- Aircraft
- N1321A
- Make and model
- Boeing 767306
- Aircraft serial
- 27957
- Aircraft time
- 81,870 hours, 18,955 cycles
- System (JASC)
- 4920 · APU Core Engine
- Part
- Control Valve
- Part number
- 97980612
- Part serial
- 2517C
- Condition
- Failed
- Location
- Apu
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.