SIGNATURE

Aircraft repair and maintenance, aircraft engine and airframe maintenance, aircraft fueling, avionics installation and repair, aircraft engine repair; installation of aircraft navigation systems; ground support equipment maintenance, namely, maintenance of land vehicles, baggage carts, refueling vehicles, lavatory service vehicles, potable water vehicles, tugs, tractors, trucks, golf carts, ground power units, cargo loaders, cargo transporters, belt loaders, stairs for loading and unloading passengers, and de-icing vehicles; janitorial services in the field of aviation; aircraft fueling; airport maintenance, namely, de-icing; refurbishment and modification of ground support equipment for aircraft, namely, land vehicles, baggage carts, refueling vehicles, lavatory service vehicles, potable water vehicles, tugs, tractors, trucks, golf carts, ground power units, cargo loaders, cargo transporters, belt loaders, stairs for loading and unloading passengers, and de-icing vehicles