What was found
NR THREE HYDRAULIC QUANTITY DECREASED TO ZERO. DIVERTED TO HNL. 1-3 REVERSIBLE MOTOR PUMP SHAFT BEARINGS FAILED, DAMAGING THE SHAFT SEAL. REPLACED MOTOR PUMP AND ENGINE DRIVEN HYDRAULIC PUMPS ON NR 3 ENGINE. PART TOTAL CYCLES, 4,500.
- Difficulty date
- March 8, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N1852U
- Make and model
- Doug DC1030
- Aircraft serial
- 47811
- Engine
- Ge CF650C2
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Hydraulic Pump
- Part number
- 65607
- Condition
- Failed
- Location
- Nr 3 Engine
- Part time
- 16,000 hours
- Stage of operation
- AP
- Nature of condition
- K, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.