Braun Vista 2 and Century 2 wheelchair lifts may allow unintended wheelchair roll-away to occur when the outer barrier system fails to latch.This failure mode is alleged to have allowed an occupied, powered wheelchair, weighing 417.3 lbs (the lift is rated to 800 lb.) to roll off an elevated lift resulting in serious injuries to the chair occupant.To address outer rollstop latching issues going forward, Braun modified the subject lifts latching mechanism...a modification introduced into production on 8-24-10.To correct those lifts already in use, Braun issued two service bulletins (36218 and 36359 in April 2010 and June 2010, respectively) and one modified latch kit.Braun has now decided to recall the subject lifts covered by the two bulletins.With that safety-related recall (12E-002) this PE is closed.