# SDR DALA2017040502841

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2017
- Submitted: April 7, 2017
- Operation: Air carrier
- Aircraft: N917DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53552
- Aircraft time: 32,913 hours, 16,873 cycles
- Engine: Iae V2528D5
- Engine time: 42,636 hours, 23,231 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Failed
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017040502841

## Discrepancy

LEFT HYDRAULIC TEMP HIGH DURING CRUISE. TURNED ON TRANSFER PUMP PRESSURE WENT TO ZERO. LEFT ENGINE HYDRAULIC PUMP ON.  PRESSURE IS ZERO.  REMOVED AND REPLACED THE NR 1 ENGINE DRIVEN PUMP IAW MM.  OPERATIONS CHECKED GOOD.

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