Narrative:

On air carrier flight XXX from mci to yip on initial climb out, we climbed past our assigned altitude of 4000 ft MSL to 4300 ft MSL. We caught our error and were correcting when ATC questioned us about our assigned altitude. This occurrence was unintentional, inadvertent, not deliberate, and corrective action was taken as soon as possible.

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Original NASA ASRS Text

Title: L188 CREW OVERSHOT THEIR CLRED ALT.

Narrative: ON ACR FLT XXX FROM MCI TO YIP ON INITIAL CLBOUT, WE CLBED PAST OUR ASSIGNED ALT OF 4000 FT MSL TO 4300 FT MSL. WE CAUGHT OUR ERROR AND WERE CORRECTING WHEN ATC QUESTIONED US ABOUT OUR ASSIGNED ALT. THIS OCCURRENCE WAS UNINTENTIONAL, INADVERTENT, NOT DELIBERATE, AND CORRECTIVE ACTION WAS TAKEN ASAP.

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.