Narrative:

On the teb 5 departure at 1500 ft we turned to a 280 degree heading. At that time my first officer put 2000 ft in the altitude select. As he did this the aircraft had not captured the altitude. The aircraft climbed to 1800 ft. As it did this we also got a TA on the TCAS for an aircraft below us. We passed the aircraft went back down to 1500 ft and at 4.5 DME from teb climb to 2000 ft. After landing at ack I called teb tower to make sure that this climb in altitude was not a problem. The tower sup said it was not but to call back in a half hour just to make sure. I did this and he said that there was no problem; but to be more aware next time. Also I will not put next altitude in autoplt till it has captured the first one.

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Original NASA ASRS Text

Title: AN HS125XP FO ON THE TEB 5 DEP SELECTED 2000 FT BEFORE THE AUTOPLT CAPTURED 1500 AND THE ACFT CLBED TO 1800 FT BEFORE DSNDING TO THE 1500 FT RESTR.

Narrative: ON THE TEB 5 DEP AT 1500 FT WE TURNED TO A 280 DEG HDG. AT THAT TIME MY FO PUT 2000 FT IN THE ALT SELECT. AS HE DID THIS THE ACFT HAD NOT CAPTURED THE ALT. THE ACFT CLBED TO 1800 FT. AS IT DID THIS WE ALSO GOT A TA ON THE TCAS FOR AN ACFT BELOW US. WE PASSED THE ACFT WENT BACK DOWN TO 1500 FT AND AT 4.5 DME FROM TEB CLB TO 2000 FT. AFTER LNDG AT ACK I CALLED TEB TOWER TO MAKE SURE THAT THIS CLB IN ALT WAS NOT A PROB. THE TWR SUP SAID IT WAS NOT BUT TO CALL BACK IN A HALF HOUR JUST TO MAKE SURE. I DID THIS AND HE SAID THAT THERE WAS NO PROB; BUT TO BE MORE AWARE NEXT TIME. ALSO I WILL NOT PUT NEXT ALT IN AUTOPLT TILL IT HAS CAPTURED THE FIRST ONE.

Data retrieved from NASA's ASRS site as of January 2009 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.