aircraft maintenance

330 747 777 a330 aeronautics aerospace airbus aircraft airplane assembling assembly aviation blades boeing check checked complex complexity components design detail during engine engineer engineering facility factory fan fighter fixing fokker fuel fuselage gasses ge general hangar heavy industrial industry inside inspecting inspection jet jetliner labour line lockheed machine maintenace maintenance mechanics military modern motor mro overhaul plane plant power powerful pratt preventive propulsion pw repair rolls royce rr safety service servicing shop technician technics technology tool turbine turbofan whitney work