# SDR DALA2024121811803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2024
- Submitted: December 18, 2024
- Operation: Air carrier
- Aircraft: [N993AT](https://openairdocs.org/aircraft/N993AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55137
- Aircraft time: 59,978 hours, 42,597 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Union
- Condition: Leaking
- Location: Zone 700
- Stage of operation: DE
- 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/DALA2024121811803

## Discrepancy

SHIP 9538 -MISC/DE- THE FLIGHT CREW DECLARED AN EMERGENCY WITH ATC FOLLOWING THE RIGHT HYDRAULIC SYSTEM SHOWING A LOSS IN QUANTITY. THE QRH WAS COMPLIED WITH, BUT AN ALTERNATE GEAR EXTENSION WAS NOT REQUIRED. CORRECTIVE ACTION: MAINTENANCE CYCLED THE MLG DOORS WITH THE GEAR HANDLE UP AND FOUND THE MAIN LANDING GEAR CONTROL VALVE UNION LOOSE AND LEAKING. MAINTENANCE REPLACED THE O-RING AND RESECURED THE UNION. LEAK CHECK WAS GOOD. (LP #6930946)

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