Narrative:

During climb out directly after takeoff, I was handling fairly busy radio traffic and the climb checklist and failed to notice the captain climb through 2000 ft -- our initial level off altitude. Passing through 2300 ft he said to me, 'we're cleared to 15000 ft, right?' to which I said, 'no, 2000 ft.' the captain immediately (though very smoothly) stopped the climb at approximately 2400 ft and descended to 2000 ft while I verified our assigned altitude with ATC. ATC's response was 'climb and maintain 15000 ft.' at that time I changed the altitude setting in the altitude alerter to 15000 ft. It had been set to 2000 ft during the altitude excursion. We continued the climb and flight with no further incident.

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Original NASA ASRS Text

Title: CAPT OF AN LTT OVERSHOT INITIAL DEP ALT.

Narrative: DURING CLBOUT DIRECTLY AFTER TKOF, I WAS HANDLING FAIRLY BUSY RADIO TFC AND THE CLB CHKLIST AND FAILED TO NOTICE THE CAPT CLB THROUGH 2000 FT -- OUR INITIAL LEVEL OFF ALT. PASSING THROUGH 2300 FT HE SAID TO ME, 'WE'RE CLRED TO 15000 FT, RIGHT?' TO WHICH I SAID, 'NO, 2000 FT.' THE CAPT IMMEDIATELY (THOUGH VERY SMOOTHLY) STOPPED THE CLB AT APPROX 2400 FT AND DSNDED TO 2000 FT WHILE I VERIFIED OUR ASSIGNED ALT WITH ATC. ATC'S RESPONSE WAS 'CLB AND MAINTAIN 15000 FT.' AT THAT TIME I CHANGED THE ALT SETTING IN THE ALT ALERTER TO 15000 FT. IT HAD BEEN SET TO 2000 FT DURING THE ALT EXCURSION. WE CONTINUED THE CLB AND FLT WITH NO FURTHER INCIDENT.

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.