What was found
CENTER ADP C2 INOP PRIOR TO DEPARTURE. TESTED TRANSDUCER & FOUND NOT AT FAULT. FOUND C2 HYDRAULIC PUMP SHEARED SPLINE. REPLACED UNIT. OPS CHECK NORMAL.
- Difficulty date
- September 11, 2009
- Submitted
- September 17, 2009
- Operation
- Air carrier
- Aircraft
- N794UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26953
- Aircraft time
- 53,643 hours, 7,817 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Spline
- Condition
- Sheared
- Location
- Hyd Pump
- Component
- Pump
- Component part number
- S271W1114
- 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.