Narrative:

Although I was not an active crew member on this flight, I felt this report was in order because the flight plan was in my name. The flight was in a C-310 and I was asleep as another certified pilot was at the controls and was acting PIC. He explained the below situation to me when I awoke. He stated both engines quit 15 seconds apart due to fuel exhaustion on the auxiliary tanks. In resetting back to the main tanks he accidentally knocked the autoplt off. In the process of regaining cruise flight he inadvertently leveled off at 11000 ft instead of the assigned altitude of 10000 ft. He stated this mistake went unnoticed until ATC questioned him of his altitude at which time he took corrective action and went back to 10000 ft.

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Original NASA ASRS Text

Title: CORPORATE ACFT HAS ALTDEV.

Narrative: ALTHOUGH I WAS NOT AN ACTIVE CREW MEMBER ON THIS FLT, I FELT THIS RPT WAS IN ORDER BECAUSE THE FLT PLAN WAS IN MY NAME. THE FLT WAS IN A C-310 AND I WAS ASLEEP AS ANOTHER CERTIFIED PLT WAS AT THE CTLS AND WAS ACTING PIC. HE EXPLAINED THE BELOW SIT TO ME WHEN I AWOKE. HE STATED BOTH ENGS QUIT 15 SECONDS APART DUE TO FUEL EXHAUSTION ON THE AUX TANKS. IN RESETTING BACK TO THE MAIN TANKS HE ACCIDENTALLY KNOCKED THE AUTOPLT OFF. IN THE PROCESS OF REGAINING CRUISE FLT HE INADVERTENTLY LEVELED OFF AT 11000 FT INSTEAD OF THE ASSIGNED ALT OF 10000 FT. HE STATED THIS MISTAKE WENT UNNOTICED UNTIL ATC QUESTIONED HIM OF HIS ALT AT WHICH TIME HE TOOK CORRECTIVE ACTION AND WENT BACK TO 10000 FT.

Data retrieved from NASA's ASRS site as of July 2007 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.