# SDR 9504002295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N295US
- Make and model: Boeing 727251
- Aircraft serial: 21506
- System (JASC): [2923 · Hydraulic Pump, Auxiliary](https://openairdocs.org/jasc/2923)
- Part: Hyd Pump
- Part number: 323636
- Condition: Failed
- Location: Hyd Bay
- Part time: 36,017 hours
- Stage of operation: UK
- Nature of condition: J, K
- Precautionary procedure: A, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9504002295

## Discrepancy

DURING FLIGHT, 'B' SYSTEM HYDRAULIC PUMP NR 2 PRESSURE INDICATION FLICKERING FOLLOWED BY DECREASE IN 'B' SYSTEM QUANTITY.  CREW DECLARED AN EMERGENCY AND PERFORMED HYDRAULIC FLUID/SYSTEM LOSS CHECKLIST.  JETTISONED 6900 POUNDS OF FUEL AND RETURNED TO MSP WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED HYDRAULIC LINES 155 AND 160 IN THE ILLUSTRATED PARTS CATALOG REFERENCE 29-14-00 FIGURE 6 AND 'B' SYSTEM PUMP AND FILTERS.  OPERATIONAL AND LEAK CHECK NORMAL.

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