Narrative:

Prior to entering the oceanic track system; I tried to open the fuel cross-feed valve to balance fuel. The cross-feed valve would not open. This B767-300 had only one fuel cross-feed valve. I called dispatch; talked to maintenance control and could not get the valve to open. With the concurrence of dispatch; we chose to divert; as proceeding on was not a safe option. Declared an emergency and proceeded to another airport where we landed overweight at approximately 348;000 pounds with crash fire rescue equipment equipment in position. Landing was normal and uneventful. Taxied to the gate and made the appropriate maintenance log entries.

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Original NASA ASRS Text

Title: A B767-300 on a Transatlantic flight declared an emergency and diverted to a nearby airport when the fuel crossfeed could not be opened to correct a fuel imbalance.

Narrative: Prior to entering the oceanic track system; I tried to open the fuel cross-feed valve to balance fuel. The cross-feed valve would not open. This B767-300 had only one fuel cross-feed valve. I called Dispatch; talked to Maintenance Control and could not get the valve to open. With the concurrence of Dispatch; we chose to divert; as proceeding on was not a safe option. Declared an emergency and proceeded to another airport where we landed overweight at approximately 348;000 LBS with CFR equipment in position. Landing was normal and uneventful. Taxied to the gate and made the appropriate maintenance log entries.

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.