# SDR DXTA2025102405390

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2025
- Submitted: October 24, 2025
- Operation: Air carrier
- Aircraft: [N739QS](https://openairdocs.org/aircraft/N739QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20690
- Aircraft time: 8,749 hours, 5,055 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 5116006
- Part serial: K0051
- Condition: Defective
- Location: Zone 100
- Stage of operation: CR
- 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/DXTA2025102405390

## Discrepancy

RIGHT HYD RESERVOIR DUMPED ALL FLUID TO 0% AT FL430. CYAN FLAPS RATE LOW AND R HYD ENG PUMP FAIL ILLUMINATED. AMBER R HYD LOW AND SPILER FAULT ILLUMINATED WHEN FLAPS EXTENDED VIA ALTN FLAPS. POST FLIGHT SHOWED HYD FLUID DRIPPING FROM BOTH R ENGINE LOWER WEEP HOLES CORRECTION ACTION: REPLACED HYDRAULIC PUMP. IAW CL-350 AMM 05-51-29 AND AMM 29-12-01 OPS CHECK GOOD.

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