This equipment is used to service the aircraft between flights. Small airlines sometimes subcontract maintenance to a much larger and reputable carrier, as it ground support equipment pdf a short-term cheaper alternative to setting up an independent maintenance base. Most ground services are not directly related to the actual flying of the aircraft, and instead involve other service tasks. Cabin services ensure passenger comfort and safety.
They include such tasks as cleaning the passenger cabin and replenishment of on-board consumables or washable items such as soap, pillows, tissues, blankets, and magazines. Security checks are also made to make sure no threats have been left on the aircraft. Airport GSE comprises a diverse range of vehicles and equipment necessary to service aircraft during passenger and cargo loading and unloading, maintenance, and other ground-based operations. The wide range of activities associated with aircraft ground operations lead to an equally wide-ranging fleet of GSE. For example, activities undertaken during a typical aircraft gate period include: cargo loading and unloading, passenger loading and unloading, potable water storage, lavatory waste tank drainage, aircraft refueling, engine and fuselage examination and maintenance, and food and beverage catering. Airlines employ specially designed GSE to support all these operations.
Moreover, electrical power and conditioned air are generally required throughout gate operational periods for both passenger and crew comfort and safety, and many times these services are also provided by GSE. A single dolly for an aircraft cargo Unit Load Device, next to a group of dollies for loose luggage. Those on the right are dollies for loose baggage. A large dolly holding two aircraft cargo Unit Load Devices. Most dollies for loose baggage are completely enclosed except for the sides which use plastic curtains to protect items from weather.
ULD and cargo pallets respectively. Rollers – Dollies have built-in rollers or balls bearings on the deck to assist in the moving of containers or pallets. Advance dollies have two sets of power driven rollers, one set moves the container forward and backward, and the other move it left and right. The precise movement is needed to align the center of gravity of the container to the center of the deck, or else the dollies may turn over when in motion. In addition, the containers or pallets on dollies are secured with built-in locks. Some revolving platforms are power assisted.
An airport usually has more than one dolly fleet operator, using dollies not greatly different in appearance, and each operator is using many types of dollies simultaneously. Apron is a large area that using direct eyesight to find an item is not easy. Dolly in operation needs frequent detachment and re-attachment from the tug and other dollies. Corporate safety guidelines in the US almost always specify that chocks must be used in a pair on the same wheel and they must be placed in physical contact with the wheel.