Narrative:

During climb out to 11000 ft, I became distracted by one of my passenger around 10500 ft. I had the flight director coupled to the autoplt and the automatic level function set for 11000 ft. I noticed at 11300 ft that the aircraft did not level. I disconnected the autoplt and started a pushover. By the time this was accomplished the plane went through 11400 ft before starting down. ATC then told me to climb to 14000 ft, so I reversed and continued the climb. ATC claims I went through 11800 ft. I did not. According to the altimeter in my aircraft, the highest that I went was between 11400 ft and 11500 ft. I started down, then center said to climb to 14000 ft and maintain visual separation. I should not have let the passenger distract me so close to leveloff, nor should I have relied on the autoplt system so much even though it is authority/authorized in lieu of a sic. As I recall, there was some hesitation on center's part as to what they wanted me to do once it was idented that I was high. I started down, then he called my call sign, hesitated and then told me to climb. I made the mistake of missing my leveloff altitude, but it was not by 800 ft, 450-500 ft at the most.

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Original NASA ASRS Text

Title: SINGLE PLT OF SMT OVERSHOOTS ASSIGNED ALT IN CLB.

Narrative: DURING CLBOUT TO 11000 FT, I BECAME DISTRACTED BY ONE OF MY PAX AROUND 10500 FT. I HAD THE FLT DIRECTOR COUPLED TO THE AUTOPLT AND THE AUTO LEVEL FUNCTION SET FOR 11000 FT. I NOTICED AT 11300 FT THAT THE ACFT DID NOT LEVEL. I DISCONNECTED THE AUTOPLT AND STARTED A PUSHOVER. BY THE TIME THIS WAS ACCOMPLISHED THE PLANE WENT THROUGH 11400 FT BEFORE STARTING DOWN. ATC THEN TOLD ME TO CLB TO 14000 FT, SO I REVERSED AND CONTINUED THE CLB. ATC CLAIMS I WENT THROUGH 11800 FT. I DID NOT. ACCORDING TO THE ALTIMETER IN MY ACFT, THE HIGHEST THAT I WENT WAS BTWN 11400 FT AND 11500 FT. I STARTED DOWN, THEN CTR SAID TO CLB TO 14000 FT AND MAINTAIN VISUAL SEPARATION. I SHOULD NOT HAVE LET THE PAX DISTRACT ME SO CLOSE TO LEVELOFF, NOR SHOULD I HAVE RELIED ON THE AUTOPLT SYS SO MUCH EVEN THOUGH IT IS AUTH IN LIEU OF A SIC. AS I RECALL, THERE WAS SOME HESITATION ON CTR'S PART AS TO WHAT THEY WANTED ME TO DO ONCE IT WAS IDENTED THAT I WAS HIGH. I STARTED DOWN, THEN HE CALLED MY CALL SIGN, HESITATED AND THEN TOLD ME TO CLB. I MADE THE MISTAKE OF MISSING MY LEVELOFF ALT, BUT IT WAS NOT BY 800 FT, 450-500 FT AT THE MOST.

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.