What was found
HYD PUMP DEM C1 STATUS MSG. MODULATING VALVE FOUND FAULTY. REPLACED MOD VALVE, OP CHECKS OKAY.
- Difficulty date
- November 22, 2010
- Submitted
- November 24, 2010
- Operation
- Air carrier
- Aircraft
- N791UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26933
- Aircraft time
- 58,174 hours, 8,534 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Modulating Valve
- Part number
- 32153947
- Part serial
- 331
- Condition
- Faulty
- Location
- Hyd Pump
- Stage of operation
- NR
- 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.