# SDR TWAA9711505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N53110
- Make and model: Boeing 747131
- Aircraft serial: 19676
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Case Drain
- Condition: Failed
- Location: Nr 1 Hyd System
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9711505

## Discrepancy

FLT 883 - CDG - DURING CRUISE, THE NR 1 HYDRAULIC SYSTEM LOST FLUID.  REMOVED AND REPLACED NR 1 ENGINE DRIVEN PUMP CASE DRAIN AND PRESSURE FILTERS.  SYSTEM LEAK CHECKS NORMAL.  (M)

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