Narrative:

Aircraft continued climb through assigned altitude of 4000 ft to 6400 ft. Altitude was observed to myself and adjacent facility. Pilot was not queried in-flight. I did not verify the altitude the flight strip indicated.

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Original NASA ASRS Text

Title: C172 WAS OBSERVED CLBING THROUGH ASSIGNED ALT AND DID NOT APPLY PROPER ALT VERIFICATION PROCS. RDG, PA.

Narrative: ACFT CONTINUED CLB THROUGH ASSIGNED ALT OF 4000 FT TO 6400 FT. ALT WAS OBSERVED TO MYSELF AND ADJACENT FACILITY. PLT WAS NOT QUERIED INFLT. I DID NOT VERIFY THE ALT THE FLT STRIP INDICATED.

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.