What was found
ON TAXI OUT, NR 4 HYDRAULIC SYSTEM AIR DRIVEN PUMP INOPERATIVE IN AUTO OR CONTINUOUS. CHECKED OIL LEVEL, LUBED CONTROL VALVE, RESET ADP PER MAINTENANCE MANUAL 29-11-08 AND OPERATIONAL CHECK OK PER MAINTENANCE MANUAL 29-11-00.
- Difficulty date
- January 10, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N856FT
- Make and model
- Boeing 747132
- Aircraft serial
- 19897
- System (JASC)
- 2923 · Hydraulic Pump, Auxiliary
- Part
- Air Drive Unit
- Part number
- 10930012
- Condition
- Inoperative
- Location
- Nr 4 Engine
- 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.