# SDR FDEA202603250373

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2026
- Submitted: March 26, 2026
- Operation: Air carrier
- Aircraft: [N724FD](https://openairdocs.org/aircraft/N724FD), 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: 530
- Aircraft time: 44,183 hours, 23,612 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Packing
- Part number: NAS161216
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202603250373

## Discrepancy

AT CRUISE GOT GREEN HYD LOW QTY. BOTH ECAM AND  OVERHEAD GAGE SHOWED ALL FLUID LOST. USED MANUAL  GEAR EXTENSION. AFTER LANDING, GREEN HYD QTY BACK  INTO GREEN RANGE, BUT BELOW TOP HAT.  EMERGENCY DECLARED  AFTER BREIF WITH FLIGHT CREW, WHEN ECAM MESSAGE  APPEARED BOTH GREEN SYSTEM ENGINE DRIVEN PUMPS WERE  TURNED OFF AND GREEN SYSTEM STILL SHOWING FLUID QTY  ONCE ACFT WAS PARKED IN GATE.   SERVICED GREEN HYD SYSTEM PER AMM  12-12-29-00-0 OPENED ACCESS PANELS  415AL,473AL,474AR, ON #1 ENG PYLON, NO LEAKS WITH  JUST ELECTRIC AUX PUMPS, OPENED ENG START VALVE BY  HAND & FOUND GREEN SYS MANIFOLD IN PYLON  LEAKING AT MANIFOLD AND NON-RETURN VALVE  FOUND HYDRAULIC CHECK VALVE ITEM 60 ABOVE REF IPC  WITH BLOWN O-RING ITEM 70  ON NR 1 PYLON HYDRAULIC  GREEN MANIFOLD AS SOURCE OF GREEN SYSTEM LEAK.  R & R BLOWN O-RING MPN# NAS1612-16.  TOPPED OFF GREEN SYS TO MIDDLE OF TOP HAT & RAN BOTH ENGINES AT IDLE MOVING ALL FLT  CONTROLS.  LEAK & OPS CHKD GOOD.  ALL SYS SHOW  MIDDLE OF TOP HAT NOW.  OK FOR SERVICE.

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