# SDR P5CA9700020

- Type: Service difficulty report (as reported; unverified)
- 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](https://openairdocs.org/jasc/2923)
- Part: Air Drive Unit
- Part number: 10930012
- Condition: Inoperative
- Location: Nr 4 Engine
- Stage of operation: TX
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9700020

## Discrepancy

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.

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