R 1EFF : ALL 1 52-31-00Page 12 1 1 May 01/05 1 1 1CES 1 pressure-tight structure and drain this water over board. Some drain holes are added in the critical areas of the internal structure which is painted with a water repellent agent.
**ON A/C ALL
B. Door Suspension
The connection of the cargo door to the fuselage includes the two halves of the piano hinges and two hinge pins. The outer parts of the multi-section piano hinges are made of titanium alloy and the mid parts are made of aluminum alloy. One halve of the piano hinges is attached to the upper edge member of the cargo door with screws. The related, opposite piano hinge halves are riveted on the upper door frame fitting of the fuselage.
The hinge pins connect the door and the fuselage hinges. The fairings at both ends of the piano hinges hold and safety the hinge pins in their positions.
C. Lining and Insulation
To protect the cargo door against fire, a door lining is installed on the inner skin with quick-release fasteners and VELCRO tapes. This lining is in one section and made of prepreg layers. To protect the cargo door against heat and sound, a self-adhesive insulation mat is attached to the door lining. The mat is made of polyethylene foam.
R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
D. Proximity Switches
**ON A/C 001-049, 053-099, 101-105, 151-199, 201-220,
(Ref. Fig. 003)
R **ON A/C 106-149, 221-299, 301-399, 401-499,
(Ref. Fig. 003B)
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Proximity Switches
Figure 003
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R Proximity Switches
R Figure 003A
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1 1 May 01/05
1 1
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Proximity Switches Figure 003B
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R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
The proximity switches of the cargo door include a target and a sensor and have a separated electronic system.
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