Provides underwing, leading, and trailing edge access of the aircraft in the jacked and un-jacked condition. Due to their vertical adjustment, excellent access is afforded to other wide-body aircraft. Although designed for underwings, each stand (12 in total) may be used on other aircraft areas, such as the horizontal stabilizer and elevator.
Platforms are elevated by an air-operated twin jackscrew assembly driving a single scissor. Upper and lower-limit devices prevent over-travel. Mobility is provided with large-diameter swivel casters with locks and full-face contact brakes. Services consist of electrical and air convenience outlets. Lighting is provided as fluorescent light wired directly into junction boxes. Electrical service to the stand is from hanger power and connects to a pigtail fitting at the base of the stand. Air service to the stands also connects at the base with each stand or interconnecting stands. A connecting hose is supplied so that up to three (3) stands along the leading edge or three (3) sections along the trailing edge may be connected. Air manifolds are located on top of each platform. The elevator system is air-powered, with a control valve on top of the platform next to the stair landing. The air system is protected with a filter and lubricator. Each stand is supplied with a tow bar, but lightweight construction will allow hand movement by three (3) to four (4) personnel.