Narrative:

During climb out for a west departure from runway 18R at dfw, we were assigned 2000 ft. Once departure was contacted, we were cleared to 4000 ft. I was running the climb checklist (finished it) and adjusting the power when I heard the altitude warning horn and saw us climbing through 4200 ft. I called for the first officer to return to 4000 ft. We reached 4300 ft for just a second as we topped out. It was my 4TH day and we were at 11 hours into our duty day. A combination of being tired and distraction led to this event. I failed to monitor the first officer flying and was distraction by the checklist, power settings and the fact ranger VOR was OTS and interested to know what our route was going to be. Somehow I did not respond to the warning horn as we approached 4000 ft.

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Original NASA ASRS Text

Title: FO OF AN LTT TURBOPROP OVERSHOT ASSIGNED ALT DURING INITIAL CLB AFTER TKOF.

Narrative: DURING CLBOUT FOR A W DEP FROM RWY 18R AT DFW, WE WERE ASSIGNED 2000 FT. ONCE DEP WAS CONTACTED, WE WERE CLRED TO 4000 FT. I WAS RUNNING THE CLB CHKLIST (FINISHED IT) AND ADJUSTING THE PWR WHEN I HEARD THE ALT WARNING HORN AND SAW US CLBING THROUGH 4200 FT. I CALLED FOR THE FO TO RETURN TO 4000 FT. WE REACHED 4300 FT FOR JUST A SECOND AS WE TOPPED OUT. IT WAS MY 4TH DAY AND WE WERE AT 11 HRS INTO OUR DUTY DAY. A COMBINATION OF BEING TIRED AND DISTR LED TO THIS EVENT. I FAILED TO MONITOR THE FO FLYING AND WAS DISTR BY THE CHKLIST, PWR SETTINGS AND THE FACT RANGER VOR WAS OTS AND INTERESTED TO KNOW WHAT OUR RTE WAS GOING TO BE. SOMEHOW I DID NOT RESPOND TO THE WARNING HORN AS WE APCHED 4000 FT.

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.