Narrative:

We were supposed to do a procedure that involves opening the fuel transfer valves on the ground before departure according to an MEL. We were 12 hours into our 13 hour duty day; and due to fatigue we both forgot it. I have had this MEL many times before without incident. I didn't realize we had forgotten it until the next morning when we had the same plane. We didn't forget it this time. This could have caused a trapped fuel condition that has serious consequences. Fortunately; in this case it did not.

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Original NASA ASRS Text

Title: A320 Captain forgot to do a procedure that involves opening the fuel transfer valves on the ground before departure according to an MEL. Fatigue was cited as a factor.

Narrative: We were supposed to do a procedure that involves opening the fuel transfer valves on the ground before departure according to an MEL. We were 12 hours into our 13 hour duty day; and due to fatigue we both forgot it. I have had this MEL many times before without incident. I didn't realize we had forgotten it until the next morning when we had the same plane. We didn't forget it this time. This could have caused a trapped fuel condition that has serious consequences. Fortunately; in this case it did not.

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.