Narrative:

Moved to runway 24 for takeoff, followed small aircraft X. Checked downwind and approach, cleared, moved onto runway. Small aircraft X was slow taking off. When he did clear I began my takeoff roll as low wing retractable (small aircraft Z) passed overhead climbing missed approach to the right and above about 50 ft. In final check I had bumped volume control of radio turning it down and due to afternoon haze and colored aircraft did not see or hear fast approach, high traffic due to fly in. I should have been much more careful.

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Original NASA ASRS Text

Title: NMAC AS SMA STARTS TKOF ROLL AND LNDG ACFT PERFORMS A MISSED APCH. POTENTIAL CONFLICT.

Narrative: MOVED TO RWY 24 FOR TKOF, FOLLOWED SMA X. CHKED DOWNWIND AND APCH, CLRED, MOVED ONTO RWY. SMA X WAS SLOW TAKING OFF. WHEN HE DID CLR I BEGAN MY TKOF ROLL AS LOW WING RETRACTABLE (SMA Z) PASSED OVERHEAD CLBING MISSED APCH TO THE R AND ABOVE ABOUT 50 FT. IN FINAL CHK I HAD BUMPED VOLUME CTL OF RADIO TURNING IT DOWN AND DUE TO AFTERNOON HAZE AND COLORED ACFT DID NOT SEE OR HEAR FAST APCH, HIGH TFC DUE TO FLY IN. I SHOULD HAVE BEEN MUCH MORE CAREFUL.

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.