Narrative:

First officer was flying. We were to descend from FL290 to FL280. At FL277, the altitude alert chimed. We immediately climbed to FL280, and leveled off.

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Original NASA ASRS Text

Title: A FLT CREW IS REMINDED TO LEVEL AT ASSIGNED ALT BY THE CHIMING OF THE ALT ALERT WARNING.

Narrative: FO WAS FLYING. WE WERE TO DSND FROM FL290 TO FL280. AT FL277, THE ALT ALERT CHIMED. WE IMMEDIATELY CLBED TO FL280, AND LEVELED OFF.

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.