# SDR AALA20171027006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2017
- Submitted: November 1, 2017
- Operation: Air carrier
- Aircraft: [N894NN](https://openairdocs.org/aircraft/N894NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31147
- Aircraft time: 17,242 hours, 6,851 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Part serial: MX758924
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20171027006

## Discrepancy

AIRCRAFT WAS GROUNDED.  EMERGENCY DECLARED.  AT CRUISE, THE NR 2 ENGINE ELECTRIC DRIVEN PUMP LIGHT AND SYSTEM B HYDRAULIC LOW LIGHT ILLUMINATED.  LANDING UNEVENTFUL.  REMOVED AND REPLACED NR 2 ENGINE DRIVEN PUMP PER AMM 29-11-11 AND STANDBY ELECTRIC MOTOR DRIVEN PUMP PER AMM 29-21-21 (AALA201710309024).  OPERATIONAL CHECK GOOD.

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