3) Ensure there are no holes in the shroud or signs of wear.
4) If there is damage to the shroud, replace with a new shroud (AMM 25-51-0).
5) Ensure the moisture shroud at the nose wheel well bulkhead is installed
correctly with the 10 screws.
6) Ensure the aft edge of the moisture shroud is correctly installed to the forward drain channel with stud fasteners.
7) Ensure the moisture shroud is installed correctly at the right and left sides of the nose wheel well.
8) The surface tension of the shroud must be such that it does not contain areas where moisture can collect.
9) Ensure the moisture shroud installation screws and clips are sealed correctly (AMM 51-31-0).
10) Install the airstair drip pan access panel and torque the fasteners until the gasket seal is approximately 30% to 50% compressed.
NOTE: It is recommended to replace the gasket with a new silicone sponge rubber gasket seal to make sure the drip pan does not leak when it contains liquid. Replace by cleaning the gasket contact surface on the access panel, then bonding gasket to the panel using adhesive. After applying adhesive to panel, gasket should be installed immediately onto panel, prior to the point when the adhesive starts to film over. Adhesive must setup for a minimum of two hours before access panel can be reinstalled.
G. Return the aircraft to its usual condition
(1)
Remove all tools and equipment from the work area.
(2)
Close the E/E compartment door.
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CARGO COMPARTMENTS - DESCRIPTION AND OPERATION
1. General
A. Two cargo compartments are under the passenger cabin floor (Fig. 1). The forward compartment volume is about 370 cubic feet and the aft compartment volume is about 505 cubic feet. The compartments are pressurized and they are class D (smother type) compartments from the standpoint of fire protection.
B. An inward-opening door is in the right sidewall of each compartment (Ref Chapter 52, Cargo Compartment Doors). Each compartment also has an access panel in its ceiling through which the compartment can be entered from the passenger cabin.
C. Each compartment is furnished with anchorplates, tiedown tracks, stanchions, and webbing to keep the cargo from shifting when the airplane is in flight. On airplanes not equipped with stanchions, tiedown fittings are installed in the same locations.
D. The compartment bulkheads, ceilings, and sidewalls are lined with fiberglass, sheet metal panels and shrouds. For a more complete description of the cargo compartment linings refer to 25-52-100, Cargo Compartment Lining and Insulation.
E. A pressure equalization valve is in the aft bulkhead of each compartment (Ref Chapter 21, Pressure Equalization Valves). The valves let only enough air flow into or out of the compartments to keep the compartment pressures nearly the same as the cabin pressure.
F. The forward compartment has a blowout panel in the forward bulkhead, one in the ceiling, and one in the aft bulkhead (Ref Chapter 21, Ceiling Blowout Panels and Bulkhead Blowout Panels). The aft compartment ceiling access panel also serves as a blowout panel for the aft compartment. The blowout panels are pushed out of their supports by such pressure differences as might result if the airplane should abruptly lose pressurization. Air can then flow into or out of the compartment at a greater rate than the pressure equalization valves would allow.
G. A wide-angle viewing lens is in the ceiling of each compartment (Ref Chapter 56, Viewers and Observation Windows). Most of the cargo compartment contents can be seen from the passenger cabin by means of the lenses.
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H. Emergency access is provided from the passenger cabin to the cargo compartments as follows:
(1)
Emergency access to the forward cargo compartment is provided by a removable access door or panel. The words "Remove for Emergency Access to Cargo Compt." are stenciled on the upper surface of the access door.
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