Narrative:

I was copying ATIS when cleared to descend to FL230. Descent was made through FL230 to FL222 before error was corrected. Climb was made back to FL230, then received clearance to lower altitude by center.

Google
 

Original NASA ASRS Text

Title: FLT CREW OF MLG OVERSHOT ASSIGNED ALT BY 800' ON DESCENT.

Narrative: I WAS COPYING ATIS WHEN CLRED TO DSND TO FL230. DSNT WAS MADE THROUGH FL230 TO FL222 BEFORE ERROR WAS CORRECTED. CLB WAS MADE BACK TO FL230, THEN RECEIVED CLRNC TO LOWER ALT BY CENTER.

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.