Narrative:

During cruise flight the aircraft had an uncommanded fuel imbalance that could not be controlled. Referred to the QRH. Declared an emergency and diverted.

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Original NASA ASRS Text

Title: B737-800 crew discovers a fuel imbalance during cruise flight that cannot be corrected with QRH procedures. Crew diverts to the nearest suitable airport.

Narrative: During Cruise flight the aircraft had an uncommanded fuel imbalance that could not be controlled. Referred to the QRH. Declared an emergency and diverted.

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.