Narrative:

Altitude deviation. Cleared to climb and maintain 6000 ft MSL. Passed it and climbed to 7000 ft MSL. ATC asked, I returned to 6000 ft. No traffic conflict. Always pay attention to altitude assigned. But missed it anyway.

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Original NASA ASRS Text

Title: ALTDEV ON DEP MSY OF 1000 FT.

Narrative: ALTDEV. CLRED TO CLB AND MAINTAIN 6000 FT MSL. PASSED IT AND CLBED TO 7000 FT MSL. ATC ASKED, I RETURNED TO 6000 FT. NO TFC CONFLICT. ALWAYS PAY ATTN TO ALT ASSIGNED. BUT MISSED IT ANYWAY.

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.