Narrative:

With 13000 ft given we ballooned 500 ft above clearance altitude. I returned to 13000 ft immediately. Supplemental information from acn 308891: exceeded 13000 ft clearance altitude by about 500 ft while slightly distracted by adapting to unfamiliar routing. Returned immediately to 13000 ft clearance altitude.

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Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION -- ACR OVERSHOT ITS ALT DURING CLB OUT AND RETURNS TO THE ASSIGNED ALT IMMEDIATELY.

Narrative: WITH 13000 FT GIVEN WE BALLOONED 500 FT ABOVE CLRNC ALT. I RETURNED TO 13000 FT IMMEDIATELY. SUPPLEMENTAL INFO FROM ACN 308891: EXCEEDED 13000 FT CLRNC ALT BY ABOUT 500 FT WHILE SLIGHTLY DISTRACTED BY ADAPTING TO UNFAMILIAR ROUTING. RETURNED IMMEDIATELY TO 13000 FT CLRNC ALT.

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.