Narrative:

On climb out of jyo, set altitude preselect to 1400 ft MSL (base of class B airspace was 1500 ft MSL), but forgot to engage autoplt before aircraft climbed to 1800 ft MSL. Immediately descended to 1400 ft MSL.

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Original NASA ASRS Text

Title: PLT OF A MOONEY M20 INADVERTENTLY CLBED INTO CLASS B AIRSPACE WHEN DEPARTING A NON TWR ARPT UNDERLYING THE CLASS B AIRSPACE.

Narrative: ON CLBOUT OF JYO, SET ALT PRESELECT TO 1400 FT MSL (BASE OF CLASS B AIRSPACE WAS 1500 FT MSL), BUT FORGOT TO ENGAGE AUTOPLT BEFORE ACFT CLBED TO 1800 FT MSL. IMMEDIATELY DSNDED TO 1400 FT MSL.

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.