# SDR CALA2013091600658

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2013
- Submitted: September 16, 2013
- Operation: Air carrier
- Aircraft: [N14235](https://openairdocs.org/aircraft/N14235), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28947
- Aircraft time: 45,201 hours, 16,863 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Part serial: MX765825
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 6 hours, 3 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013091600658

## Discrepancy

NR 1 ENGINE DRIVEN "A'' HYD LOW PRESSURE LIGHT ILLUMINATED.  FOLLOWED QRH, FOUND NR 1 ENGINE DRIVEN HYD PUMP FAILED, REPLACED IAW AMM 29-11-11.  REPLACED ASSOCIATED FILTERS.   FILTERS REPLACED, CASE DRAIN, PRESSURE MODULE, RETURN FILTER & PTU PRESSURE FILTER.  PUMP & FILTERS OPERATIONS & LEAK CHECKED NORMAL.

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