What was found
(CAN) IN CRUISE, EICAS MESSAGE ANNUNCIATION "LT ENG HYD PUMP". IN-FLIGHT TURNBACK INITIATED TO YYZ FOR COMPANY CONVENIENCE. THE LEFT ENGINE HYDRAULIC PUMP PRESSURE SWITCH WAS FOUND DEFECTIVE. (TC NR 20091229003)
- Difficulty date
- December 27, 2009
- Submitted
- January 19, 2010
- Operation
- General aviation
- Make and model
- Boeing 75728A
- Aircraft time
- 47,981 hours
- Engine
- Rroyce RB211535E4
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pressure Switch
- Part number
- 211C223327
- Condition
- Defective
- Location
- Hyd Pump
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.