# SDR AALA202604238252

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2026
- Submitted: April 23, 2026
- Operation: Air carrier
- Aircraft: [N863NN](https://openairdocs.org/aircraft/N863NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30903
- Aircraft time: 45,642 hours, 19,532 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Faulted
- Location: Zone 400
- 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/AALA202604238252

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 1 HYDRAULIC A PUMP LOW PRESSURE ILLUMINATE IN FLIGHT CRUISING AT FL380, HYDRAULIC AQUANTITY WAS AT 78% AND DECREASED TO 72% OVER 15 MINUTES. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT JAX. FOUND ENGINE 1 HYDRAULIC PRESSURE LINE CONNECTOR COMPLETELY BROKEN APART. REMOVE AND INSTALLED BOTH PRESSURE LINE (AALA202604230273) AND SUPPLY LINES (AALA202604231488), PER AMM 29-11-11. ALSO REMOVED AND INSTALLED ENGINE NUMBER 1 DRIVEN PUMP (AALA202604238252), PER AMM 29-11-11. OPS AND LEAK CHECK GOOD.

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