The aircraft , which were on static or flying Self_motion display , include Cause_to_be_included Boeing 777 , Airbus A340 400 , Canadian Regional Jet of Bombardier Citation , business jets manufactured Manufacturing by various global leaders , Bell Helicopters , DragonFly , Cessna , Indian-made Pushpak and Indian firm Hindavia 's Russian-made regional aircraft Ilyushin Il-114 .

It involved Cause_to_be_included the Imperial German Navy 's L 2 airship manufactured by Luftschiffbau Zeppelin as LZ 18 .

The subsequent investigation concluded Coming_to_believe that the failure had been caused Causation by the breaking Bodily_harm of a stub oil pipe which had been manufactured Manufacturing improperly .