Panel can refer to: A committee or jury used to decide some matter. In a legal context it may refer to a subset of a full set of appeal court judges, in contrast to an en banc hearing, which involves them all.In accident investigations, a full investigation may involve sub-panels with expertise in differing areas, in the aircraft context perhaps covering avionics, structures, engines and so on. Control panel (engineering), a flat area containing controls and indicators. Commonly found in aircra… (More on Panel)