# SDR AALA2019122319012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2019
- Submitted: December 23, 2019
- Operation: Air carrier
- Aircraft: [N124US](https://openairdocs.org/aircraft/N124US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1314
- Aircraft time: 56,767 hours, 27,465 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Hyd System
- Stage of operation: NR
- 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/AALA2019122319012

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS HYD "G'" RSVR LO LEVEL "G" ECAM. PUMP TURNED OFF WITHIN 5 MINUTES OF ECAM, PUMP RAN APPROX 10 MIN LATER FOR GEAR EXT UNTIL LO LVL MSG REAPPEARED. EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED #1 HYD PUMP DELIVERY LINE CHECK VALVE O-RING , NO LEAKS NOTED ON GROUND IDLE RUN, ALL WORK IAW AMM 29-11-36-400-001 AND AMM 29-00-00-280-006. ENG PUMP RAN LESS THAN 10 MINUTES WITH PUMP SWITCH OFF AND FIRE VALVE OPEN, NO FURTHER DISCREPANCIES NOTED.

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