What was found
RIGHT BODY AND WING GEAR DOORS WOULD NOT CLOSE USING PRIMARY AND ALTERNATE SYSTEM. FAILED NR 4 HYDRAULIC PUMP. FOUND LEAKING PUMP SEAL SHAFT. REPLACED PUMP.
- Difficulty date
- April 8, 1996
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N4727U
- Make and model
- Boeing 747122
- Aircraft serial
- 19883
- Engine
- Pwa JT9D7A
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Hyd Pump
- Condition
- Leaking
- Location
- Nr 4
- Component
- Abex · 6506606
- Stage of operation
- CL
- Nature of condition
- J, K
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.