What was found
LEFT HYDRAULIC PRIMARY PUMP AND RUDDER RATIO EICAS CAME ON INTERMITTENTLY DURING FLIGHT AT FL 380-400. REPLACED EDP PRESSURE SWITCH, S26, OPERATIONAL CHECKED GOOD WITH ENGINE RUN. ENG CHECK GOOD.
- Difficulty date
- December 2, 2011
- Submitted
- January 3, 2012
- Operation
- Air carrier
- Aircraft
- N677UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30029
- Aircraft time
- 37,702 hours, 9,390 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Pressure Switch
- Part number
- 211C223211
- Part serial
- Y02797A
- Condition
- Failed
- Location
- Hyd System
- Stage of operation
- CR
- 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.