Narrative:

During cross-feed operation the crossfeed valve failed to function properly causing left engine to lose power temporarily. While identifying problem I lost approximately 400 ft for approximately 30-40 seconds. Crossfeed problem was resolved; engine regained power. Center was called and advised. Controller said no problem.

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Original NASA ASRS Text

Title: C414 pilot deviated from assigned altitude while dealing with a temporary loss of power related to fuel crossfeed valve malfunction.

Narrative: During cross-feed operation the crossfeed valve failed to function properly causing left engine to lose power temporarily. While identifying problem I lost approximately 400 FT for approximately 30-40 seconds. Crossfeed problem was resolved; engine regained power. Center was called and advised. Controller said no problem.

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.