What was found
NR 4 ENG HYD PUMP EICAS, FLIGHT DIVERTED. DUE TO HYD QTY, GEAR MONITOR AND LOW QTY MSG RPL'D THE #4 HYDIM CARD PER MM. ALL MSGS CLEARED AND HYDIM 4 TEST PASSED.
- Difficulty date
- August 11, 2011
- Submitted
- September 2, 2011
- Operation
- Air carrier
- Aircraft
- N121UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29167
- Aircraft time
- 51,263 hours, 6,088 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Circuit Card
- Part number
- 285U0032202
- Part serial
- D01978
- Condition
- Faulty
- Location
- Hydraulic Sys
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.