Chancellor 414A / C414
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 100; Flight Crew Total 24000; Flight Crew Type 500
Distraction
Aircraft Equipment Problem Critical; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; Flight Crew Returned To Clearance
Aircraft; Human Factors
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.
C414 pilot deviated from assigned altitude while dealing with a temporary loss of power related to fuel crossfeed valve malfunction.