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The most hazardous part of the deservicing

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is the draining of the monomethylhydrazine fuel

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from the orbiter's rockets and thrusters.

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This procedure is commonly called SCAPE.

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An acronym for the Self-Contained

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Atmospheric Protective Equipment

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that the technicians must wear.

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It is a lengthy process mandated by safety

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requirements due to the highly toxic

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nature of the fuel.

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Once SCAPE is complete,

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the aft engine area is prepared

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for installation of the aerodynamic tail cone,

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This 10,000 pound fairing is

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mounted over the main engine nozzles

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to help reduce drag during the ferry flight.

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Once the tail cone is in place

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the orbiters body flap is raised to fit

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flush against the tail cones bottom

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and the landing gear is raised and locked into place.