Narrative:

In cruise FL370 got an ECAM indicating all fluid was lost. Completed ECAM contacted dispatch via ACARS call me. Communication with dispatch via VHF while virtually over ZZZ was extremely difficult and involved several frequency changes. Finally had to go through commercial radio. No other failures occurred elected to divert to ZZZ. Landed uneventfully. The yellow system was the hydraulic system we lost.

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Original NASA ASRS Text

Title: AN A320 FLT CREW EXPERIENCED A LOSS OF YELLOW SYS HYD FLUID AND DIVERTED TO THE NEAREST SUITABLE AIRPORT.

Narrative: IN CRUISE FL370 GOT AN ECAM INDICATING ALL FLUID WAS LOST. COMPLETED ECAM CONTACTED DISPATCH VIA ACARS CALL ME. COM WITH DISPATCH VIA VHF WHILE VIRTUALLY OVER ZZZ WAS EXTREMELY DIFFICULT AND INVOLVED SEVERAL FREQ CHANGES. FINALLY HAD TO GO THROUGH COMMERCIAL RADIO. NO OTHER FAILURES OCCURRED ELECTED TO DIVERT TO ZZZ. LANDED UNEVENTFULLY. THE YELLOW SYS WAS THE HYD SYS WE LOST.

Data retrieved from NASA's ASRS site as of January 2009 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.