Narrative:

Just east of pxn VOR. Location: 20 mi east of pxn. Just at leveloff, indicated airspeed selected. Aircraft climbed through FL290 to FL274.

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Original NASA ASRS Text

Title: AN MD80 CAPT MISHANDLED THE AUTOPLT CAUSING AN ALT OVERSHOOT IN ZLA AIRSPACE.

Narrative: JUST E OF PXN VOR. LOCATION: 20 MI E OF PXN. JUST AT LEVELOFF, INDICATED AIRSPD SELECTED. ACFT CLBED THROUGH FL290 TO FL274.

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.