Here is a little known tidbit about the Caravelle flying while uncertified during commercial operations. Back in the eighties and quite possibly right now the Caravelle was not fully certified for commercial operations. It seems that most of the heavy maintenance and overhaul of equipment was performed by (I believe) Finair or some Scandinavian firm. Some of the equipments they overhauled were for the secondary flight controls. An English firm manufactured many of these devices. The overhaul entity refused to transmit service histories on these flight control elements to the English firm and they in turn refused to certify the overhaul of the devices. This went on for several years and for all I know it is still going on
