# SDR SCNA20230117041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2023
- Submitted: January 17, 2023
- Operation: Air carrier
- Aircraft: [N837SY](https://openairdocs.org/aircraft/N837SY), registered now
- Make and model: Boeing 737-8KN
- Registry model: [Boeing 737-8KN](https://openairdocs.org/model/boeing-737-8kn) (OpenAirDocs)
- Aircraft serial: 40252
- Aircraft time: 40,311 hours, 16,288 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Low Pressure
- Location: Hyd System
- Stage of operation: CL
- 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/SCNA20230117041

## Discrepancy

HYDRAULIC SYSTEM A ENGI 1 LOW PRESSURE LIGHT IILLUMINATED FOLLOWED BY LOSS OF HYDRAULIC GUQNTITY IN FLIGHT IN SYSTEM A. RAN QRH AND LANDED UNEVENTFULLY OVERWEIGHT.    REMOVED AND REPLACED #1 ENG HYD PUMP PER AMM 29-11-400-801-001 AND 29-11-11-000-801-001. REPLACED #1 ENG HYD CASE DRAIN FILTER PER AMM 29-11-51. OPERATIONAL CHECKS GOOD. LEAK CHECKS GOOD.

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