Narrative:

Autoplt descended at 400 FPM (uncommanded). We were maintaining 5000 ft. We caught it at 4650 ft and climbed back to 5000 ft. Autoplt was written up and replaced on arrival.

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Original NASA ASRS Text

Title: ACFT EQUIP PROB. AUTOPLT DSNDED UNCOMMANDED. FLC DISCONNECTED IT AND CLBED BACK TO ASSIGNED ALT. MLG.

Narrative: AUTOPLT DSNDED AT 400 FPM (UNCOMMANDED). WE WERE MAINTAINING 5000 FT. WE CAUGHT IT AT 4650 FT AND CLBED BACK TO 5000 FT. AUTOPLT WAS WRITTEN UP AND REPLACED ON ARR.

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.