Narrative:

ECAM hydraulic Y rsvr lo lvl message was observed. I transferred aircraft control to the pilot not flying and accomplished all required non-normal items. I contacted dispatch and established a conference call with maintenance control and our dispatcher. The decision was made to return to our departure airport and a return route was coordinated with ATC.

Google
 

Original NASA ASRS Text

Title: An A319 ECAM annunciated HYD Y RSVR LO LVL in-flight. The flight crew returned to the departure airport.

Narrative: ECAM HYD Y RSVR LO LVL message was observed. I transferred aircraft control to the pilot not flying and accomplished all required non-normal items. I contacted Dispatch and established a conference call with Maintenance Control and our Dispatcher. The decision was made to return to our departure airport and a return route was coordinated with ATC.

Data retrieved from NASA's ASRS site as of April 2012 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.