Method of containing contaminants during processing of an aircraft wing-body section

A method of containing contaminants during processing of an aircraft wing-body section having a pair of wings joined to a fuselage center section having an aircraft longitudinal axis, the method including:

• positioning a forward module against a forward end of the aircraft wing-body section such that a forward closeout panel of the forward module is engaged to and at least partially closes off a fuselage center section forward end;
• providing a center module under the aircraft wing-body section such that a panel upper edge of each of opposing module side panels on each of opposing sides of the center module are engaged to a wing lower surface respectively of the pair of wings of the wing-body section;
• positioning an aft module against an aft end of the aircraft wing-body section such that an aft closeout panel is engaged to and at least partially closes off a fuselage center section aft end;
• and
• wherein the forward module, center module, and aft module, when assembled around the wing-body section, form a spray containment system that, in combination with the wing-body section, collectively defines an internal environment that contains contaminants generated during application of one or more coatings to portions of the wing-body section, wherein the forward module and the aft module are independently moveable.