Narrative:

Altitude deviation corrected after reaching FL220. ATC advised 300 ft difference. We had failed to reset the altimeter 29.92. The correction was made after ATC advised us of the altitude deviation. There is not a check for the crew to reset altitude passing through 18000 ft. More attention should have been given by the flight crew. Supplemental information from acn 301746: this was our last flight of a long day.

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Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT IN CLB.

Narrative: ALTDEV CORRECTED AFTER REACHING FL220. ATC ADVISED 300 FT DIFFERENCE. WE HAD FAILED TO RESET THE ALTIMETER 29.92. THE CORRECTION WAS MADE AFTER ATC ADVISED US OF THE ALTDEV. THERE IS NOT A CHK FOR THE CREW TO RESET ALT PASSING THROUGH 18000 FT. MORE ATTN SHOULD HAVE BEEN GIVEN BY THE FLC. SUPPLEMENTAL INFO FROM ACN 301746: THIS WAS OUR LAST FLT OF A LONG DAY.

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.