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DOORS -INTRODUCTION
General Description
These are the types of doors:
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Passenger entry doors
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Cargo doors
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Service doors
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Fixed interior doors.
There is a door warning system that gives door status information to the flight crew.
Abbreviations and Acronyms
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AC -alternating current
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ADP -air-driven pump
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AIMS -airplane information management system
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APU -auxiliary power unit
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ARINC -Aeronautical Radio, Inc.
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aux -auxiliary
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CACP -cabin area control panel
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cm -centimeter
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CSS -cabin services system
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CSCP -cabin system control panel
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DC -direct current
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ECS -environmental control system
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EICAS -engine indication and crew alerting system
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E/E -electrical and electronic
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EPAS -emergency power assist system
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fwd -forward
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gnd -ground
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hdlg -handling
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Hz -hertz
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inbd -inboard
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MAT -maintenance access terminal
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MEC -main equipment center * outbd -outboard
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PDU -power drive unit
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pnl -panel
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PSI -pounds per square inch
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PSEU -proximity sensor electronics unit
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pwr -power
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ref -reference
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RPM -revolutions per minute
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V -volt
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DOORS -INTRODUCTION
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PASSENGER ENTRY DOOR SYSTEM -INTRODUCTION
Purpose
Passenger entry doors give access to the passenger compartment.
General Description
Plug-type passenger entry doors are on both sides of the airplane. The doors give a clear opening of 42 x 72 inches (106.7 x 188 cm). This size of opening allows two people to move through the door at the same time. The doors are identified by number from front to back and by the side of the airplane that they are on. These are the doors:
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1 left and 1 right
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2 left and 2 right
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3 left and 3 right
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4 left and 4 right.
To open a door, you must unlock it then unlatch it and then open it. You unlock and unlatch a door manually. Usually you open a door manually. All doors have an emergency power assist system that you can use to open a door in an emergency. You use an interior or exterior door handle to unlock and unlatch a door. The first movement of the door handle towards the open position, opens the vent door and unlocks the door. Continued movement of the door handle to its full open position, causes the door to move inward (.4 inches, 1 cm) and upward (2 inches, 5 cm) out of its plug position. This is the door unlatched position. The doors open and close on a single hinge arm. When you move the door out away from the closed position, it translates forward (140 degrees) to the full open position. Translation means that the door does not turn in relation to the airplane. When full open, the inside of the door is next to the outside of the fuselage. A hold-open mechanism keeps the door full open.
To close a door, you release the hold-open device. Move the door to the closed position. Use an interior or exterior handle to latch and lock the door.
The doors have these major parts:
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