# SDR SWAA2025050768343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2025
- Submitted: May 7, 2025
- Operation: Air carrier
- Aircraft: [N8565Z](https://openairdocs.org/aircraft/N8565Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42533
- Aircraft time: 23,757 hours, 12,164 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Failed
- Location: Zone 400
- Stage of operation: AP
- 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/SWAA2025050768343

## Discrepancy

ON APPROACH; 'B' ENG DRIVEN PUMP LOW PRESSURE LIGHT FLICKERED AND THEN CAME ON SOLID. ELECT B PUMP LOW PRESSURE LIGHT ALSO ILLUMINATED. VERIFIED QTY WENT TO ZERO. FOLLOWED QRH. FOUND FLUID COMING FROM HYD DRAIN PAD DRAIN. SUSPECT THE PUMP FAILED.<[01] FOUND #2 ENGINE HYD PUMP HAD FAILED. R&R #2 ENGINE HYD PUMP AND ALL CASE DRAIN FILTERS. LEAK AND OPS CHECKS GOOD PER AMM 29-11-11; 29-11-51; 29-11-41

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