# SDR AALA20160709005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2016
- Submitted: July 11, 2016
- Operation: Air carrier
- Aircraft: [N917NN](https://openairdocs.org/aircraft/N917NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29572
- Aircraft time: 11,359 hours, 4,458 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Part serial: MX764958
- Condition: Faulty
- Location: Hyd System
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20160709005

## Discrepancy

DURING CLIMB CREW REPORTED HYDRAULIC SYSTEM B LOW PRESSURE LIGHT ILLUMINATED WITH FLUID QUANTITY NORMAL.  EMERGENCY DECLARED,  LANDING UNEVENTFUL.  AIRCRAFT WAS GROUNDED. MAINTENANCE REMOVED AND REPLACED NR 2 ENGINE DRIVEN HYDRAULIC PUMP IAW AMM 29-11-11.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.