# SDR AALA202605018269

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2026
- Submitted: May 1, 2026
- Operation: Air carrier
- Aircraft: [N542UW](https://openairdocs.org/aircraft/N542UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4134
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Part number: D2901005100700
- Condition: Leaking
- Location: Zone 400
- Stage of operation: NR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605018269

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO DFW DUE TO THE FLIGHT CREW REPORTING A YELLOW HYDRAULIC SYSTEM LOW PRESSURE INDICATION FOLLOWED BY A YELLOW HYDRAULIC SYSTEM LOW QUANITY ECAM WARNING 5 MINUTES LATER WHILE IN FLIGHT. THE AIRCRAFT LANDED SAFLEY AT DFW AND WAS TOWED TO THE GATE.   MAINTENANCE FOUND A HOLE IN THE MIDDLE HYDRAULIC PRESSURE LINE IN THE #2 PYLON AND REPLACED IT PER AMM 29-13-49. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

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