What was found
(CAN) HYDRAULIC PUMP WAS OBSERVED RUNNING CONTINOUSLY. MAINTENANCE FOUND THE THERMAL PRESSURE RELIEF VALVE TO BE OPENING AT 1200 PSI INSTEAD OF THE RATED 2250 PSI. VALVE CHANGED.
- Difficulty date
- January 31, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Make and model
- Beech 200BEECH
- Engine
- Pwa PT6A41
- System (JASC)
- 2915 · Hydraulic Pressure Relief Valve, Main
- Part
- Valve
- Part number
- MS28893C6
- Condition
- Failed
- Location
- Hyd Press Relief
- Part time
- 4,462 hours
- Component
- MS28893C6
- Stage of operation
- TX
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.