What was found
(CAN) THERMOSTATIC VALVE FOUND TO BE MALFUNCTIONING WHICH CAUSED EXCESS HEAT IN OIL. THIS CAUSED POOR SCAVENGE FROM AGB AND INITIATED A STATIC LEAK THROUGH NR 1 BEARING LAB SEAL. PWC TERMED BLACK OIL SYNDROME .
- Difficulty date
- February 29, 2000
- Submitted
- April 14, 2000
- Operation
- Air carrier
- Make and model
- Beech 1900D
- Aircraft time
- 4,114 hours
- Engine
- Pwa PT6A67D
- System (JASC)
- 7261 · Turbine Engine Oil System
- Part
- Pump
- Part number
- 3004005
- Condition
- Worn
- Location
- Scavenge
- Part time
- 4,567 hours, 5,627 cycles
- Component
- Turbine Engine O · Pwa · PT6A67D
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.