Narrative:

We were proceeding from syracuse to boston, climbing to an assigned altitude of 15000 ft. ZBW (133.25) asked us to say assigned altitude. We then realized the altitude alerter was set incorrectly. At this time we were climbing through approximately 16200 ft. 17000 ft was set into the altitude alerter, not 15000 ft. This mistake was not known by either one of us. Improper setting and confirmation of the altitude was the problem. I was preoccupied at the time the altitude was set and the mistake was not caught. We told ZBW 17000 ft and the controller then said roger and to maintain 17000 ft. Then he handed us to the next sector (121.35). We checked in normally at 17000 ft. Nothing else was said by the controllers about this being a problem.

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Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT. ACR CREW CLBS THROUGH THEIR ASSIGNED ALT.

Narrative: WE WERE PROCEEDING FROM SYRACUSE TO BOSTON, CLBING TO AN ASSIGNED ALT OF 15000 FT. ZBW (133.25) ASKED US TO SAY ASSIGNED ALT. WE THEN REALIZED THE ALT ALERTER WAS SET INCORRECTLY. AT THIS TIME WE WERE CLBING THROUGH APPROX 16200 FT. 17000 FT WAS SET INTO THE ALT ALERTER, NOT 15000 FT. THIS MISTAKE WAS NOT KNOWN BY EITHER ONE OF US. IMPROPER SETTING AND CONFIRMATION OF THE ALT WAS THE PROB. I WAS PREOCCUPIED AT THE TIME THE ALT WAS SET AND THE MISTAKE WAS NOT CAUGHT. WE TOLD ZBW 17000 FT AND THE CTLR THEN SAID ROGER AND TO MAINTAIN 17000 FT. THEN HE HANDED US TO THE NEXT SECTOR (121.35). WE CHKED IN NORMALLY AT 17000 FT. NOTHING ELSE WAS SAID BY THE CTLRS ABOUT THIS BEING A PROB.

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.