# SDR DHL99712001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N712DH
- Make and model: Boeing 727-29
- Registry model: [Boeing 727-29](https://openairdocs.org/model/boeing-727-29) (OpenAirDocs)
- Aircraft serial: 19401
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 82060C08N
- Condition: Ruptured
- Location: Nr 2 Hyd Pump
- Stage of operation: CR
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL99712001

## Discrepancy

HYDRAULIC B PUMP NR 2 FAILED AND NR 1 PUMP FAILED INTERMITTENTLY AND PRESSURE DROPPED TO 2000 PSI INTERMITTENTLY.  NR 2 PUMP PRESSURE LINE BROKEN.  REMOVED AND REPLACED LINE PER MM 29-12-11.  INSPECTED AND CHANGED BOTH CASE DRAIN FILTERS AS PRECAUTION.  RAN AND LEAK CHECKED OK.

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