# SDR FDEA202204130955

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2022
- Submitted: August 5, 2022
- Operation: Air carrier
- Aircraft: [N744FD](https://openairdocs.org/aircraft/N744FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 664
- Aircraft time: 72,095 hours, 25,398 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Packing
- Part number: NAS161210
- Condition: Damaged
- Location: Hyd Manifold
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202204130955

## Discrepancy

AT FL 270 RECEIVED ECAM HYD GRN SYS LO PSI, THEN LO  RESERVOIR.  IMMEDIATELY TURNING OFF  GRN SYS PUMPS TO PREVENT PUMP DAMAGE. CONFIRMED  BOTH ECAM & OVERHEAD GRN SYS RES LOW.  MANUAL GEAR EXTENSION QRH CHECKLIST.  DURING DESCENT & DURING FINAL CONTINUED TO  RECEIVE GRN SYS LOW PSI.  ONCE ON DECK FOUND GREEN SYS LEVELS  NORMAL. VERIFIED GREEN HYD QUANTITY TO BE JUST BELOW THE TOP HAT. INSPECTED & FOUND HYD LEAK IN WHEEL WELL, COMING FROM BRAKE SELECTOR, STANDBY GENERATOR VALVE. FOUND A FITTING ON VALVE MANIFOLD TO BE EXCESSIVELY LOOSE, FOUND THE O-RING DAMAGED. CLEANED FITTING & REPLACED O-RING IAW AMM 20-23-16-00, LEAK CHECKED GOOD.

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