Narrative:

Approximately two hours after takeoff at FL370 we experienced a hydraulic G rsvr lo ECAM shortly followed by a fws SDAC1 fault ECAM. Duties were delegated and the ECAM procedures were accomplished in reference to the flight manual. Dispatch was contacted via voice patch and maintenance control was also notified by dispatch. A review of the situation was done; including en route and destination weather forecasts. Due to the forecast of thunderstorms and gusty winds at the forecast time of arrival and after; dispatch informed us that holding times were starting to be issued. The decision to divert was made. The weather and the possibility of windshear and/or a go around and subsequent chance of divert with landing gear extended were driving factors. Dispatch took care of coordinating the equipment (tow in) on the ground and the notification of the station of our inbound status. An emergency was declared in order to facilitate handling and ensure a runway into the gusty wind would be available. The flight attendants were briefed and passengers informed of the situation. Upon arrival; the landing gear was gravity extended successfully; all pertinent checklists accomplished and uneventful landing made. As a note; the hydraulics were in the normal range on preflight. When the landing gear was gravity extended; the green hydraulic level went to well over-serviced. The mechanics who met the aircraft at the gate also noted the reservoir was over serviced.

Related reports:

Google
 

Original NASA ASRS Text

Title: An A319 had a HYD G RSVR LO ECAM shortly followed by a FWS SDAC1 FAULT ECAM. Forecast weather at the destination led to a divert to a suitable alternate. After landing; the Green system reservoir was found to be over serviced.

Narrative: Approximately two hours after takeoff at FL370 we experienced a HYD G RSVR LO ECAM shortly followed by a FWS SDAC1 FAULT ECAM. Duties were delegated and the ECAM procedures were accomplished in reference to the Flight Manual. Dispatch was contacted via voice patch and Maintenance Control was also notified by Dispatch. A review of the situation was done; including en route and destination weather forecasts. Due to the forecast of thunderstorms and gusty winds at the forecast time of arrival and after; Dispatch informed us that holding times were starting to be issued. The decision to divert was made. The weather and the possibility of windshear and/or a go around and subsequent chance of divert with landing gear extended were driving factors. Dispatch took care of coordinating the equipment (tow in) on the ground and the notification of the station of our inbound status. An emergency was declared in order to facilitate handling and ensure a runway into the gusty wind would be available. The flight attendants were briefed and passengers informed of the situation. Upon arrival; the landing gear was gravity extended successfully; all pertinent checklists accomplished and uneventful landing made. As a note; the hydraulics were in the normal range on preflight. When the landing gear was gravity extended; the Green hydraulic level went to well over-serviced. The mechanics who met the aircraft at the gate also noted the reservoir was over serviced.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.