What was found
ON TAXI OUT, NR 4 HYDRAULIC SYSTEM AIR DRIVEN PUMP INOPERATIVE IN AUTO OR CONTINUOUS. FOUND HYDRAULIC PUMP FAILED. REPLACED HYDRAULIC PUMP PER BOEING MAINTENANCE MANUAL 29-11-17.
- Difficulty date
- January 10, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N856FT
- Make and model
- Boeing 747132
- Aircraft serial
- 19897
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pump
- Part number
- 3568807
- Condition
- Failed
- Location
- Nr 4 Hyd Syst
- Stage of operation
- TX
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.