# SDR CALA2026022314018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2026
- Submitted: February 23, 2026
- Operation: Air carrier
- Aircraft: [N38451](https://openairdocs.org/aircraft/N38451), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 31646
- Aircraft time: 42,939 hours, 15,894 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Part serial: MX734485
- Condition: Faulted
- Location: Zone 400
- Part time: 37,587 hours, 15,765 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026022314018

## Discrepancy

LOW PRESSS HYD A  ENG1 IN FLT AT 67PERCENT THEN SLOWLY PRESS 20P ERC SLOWLY DEC TO 15 PERCNT FOUND LINE ON E1 EDP LOOSE. EDP REQUIRES REPLACMENT. REPLACED PER AMM 29-11-11. OPS CHECKS PENDING. REMOVED AND REPLACED ENGINE DRIVEN HYDRAULIC PUMP UP TO AND INCLUDING SUBTASK 29-11-11-020-036 STEP (8)(A)2).   COMPLETED INSTALLATION OF #1 ENG EDP PER AMM TASK 29-11-11-400-801-001.OPS AND LEAK CHECK GOOD AT THIS TIME.

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