Narrative:

After leveloff at FL220, the center controller asked if we were level. After checking the altimeter setting and setting it to 29.92, we were about 300 ft low, missing the altimeter setting. While climbing through FL180, there was a layer of clouds and we were busy selecting anti-ice protection.

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Original NASA ASRS Text

Title: AN ACR LTT CAPT ADMITS THAT HE FORGOT TO SET HIS ALTIMETER THROUGH FL180.

Narrative: AFTER LEVELOFF AT FL220, THE CTR CTLR ASKED IF WE WERE LEVEL. AFTER CHKING THE ALTIMETER SETTING AND SETTING IT TO 29.92, WE WERE ABOUT 300 FT LOW, MISSING THE ALTIMETER SETTING. WHILE CLBING THROUGH FL180, THERE WAS A LAYER OF CLOUDS AND WE WERE BUSY SELECTING ANTI-ICE PROTECTION.

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.