EMERGENCY -EMERGENCY EVACUATION SIGNAL SYSTEM -GENERAL DESCRIPTION
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EMERGENCY -EMERGENCY EVACUATION SIGNAL SYSTEM -FUNCTIONAL DESCRIPTION
General
The 28v dc hot battery bus supplies power to all the emergency evacuation panels. When you put any command switch to the ON position, a command signal (ground) goes to all the emergency evacuation panels. This signal causes the horns and EVAC lights to come on. The signal stops when you put the applicable command switch OFF.
Emergency Evacuation Panel (P8)
A command signal to the oscillator causes the horn and the red EVAC light to come on. Use the horn shutoff switch to stop the horn in the flight deck.
Attendant Switch Panel
A command signal causes the relay to energize. The relay contacts supply power and ground to the oscillator. The oscillator causes the horn and the EVAC light to come on.
Push the horn shutoff switch to silence the horn at the attendant panel. The relay energizes and stays energized through its own contact. The energized relay removes power from the horn.
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EMERGENCY -EMERGENCY EVACUATION SIGNAL SYSTEM -FUNCTIONAL DESCRIPTION
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EMERGENCY -DETACHABLE EMERGENCY EQUIPMENT
General
These items of detachable emergency equipment are in the flight deck:
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Crash axe
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Fire gloves
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Smoke goggles
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Portable fire extinguisher
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Protective breathing equipment
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First aid kit.
These items of detachable emergency equipment are in the passenger compartment:
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Megaphones
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Flashlights
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Portable oxygen bottles
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Portable fire extinguishers
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Protective breathing equipment
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First aid kits.
Placards in the airplane mark the locations of these items.
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EMERGENCY -DETACHABLE EMERGENCY EQUIPMENT
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777 AIRCRAFT MAINTENANCE MANUAL
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DOOR-MOUNTED ESCAPE SYSTEM -GENERAL DESCRIPTION
Purpose
The door-mounted escape system helps passengers and crew get out of the airplane in an emergency. If the airplane lands in water, the slide/rafts disconnect from the airplane and used as life rafts.
General Description
Each passenger entry door has an escape slide pack. The escape slide pack attaches to the inside of the door and contains the folded slide/raft. A bustle (door lower liner) attaches to the door and is a cover for the slide pack.
When you arm a door, the girt bar latches in the floor fittings (not shown). The girt bar and floor fittings attach one end of the slide/raft to the airplane floor. When you open the door, the bottom of the escape slide pack opens. The folded slide/raft falls through the door opening. The slide/raft unfolds and inflates automatically. The average time for door opening and slide/raft inflation is seven seconds.
The slide/rafts operate correctly in wind as much as 25 knots. The slide/rafts are safe to use with different door heights caused by the failure of one or more landing gear. The slide/raft has two lanes. Two people can use the slide at the same time.
The capacity of the life rafts is sufficient to hold all the passengers and crew, even if one raft is lost.
This equipment (not shown) can be included with each raft:
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Sea anchor
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Mooring line
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Hook knife
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Lighting systems
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Manual inflation pump
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Heaving ring and line
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Survival kit
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Raft canopy
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Emergency locator transmitter (if installed).
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DOOR-MOUNTED ESCAPE SYSTEM -GENERAL DESCRIPTION
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DOOR-MOUNTED ESCAPE SYSTEM -ESCAPE SLIDE PACK -INTRODUCTION
General
The escape slide pack has two primary parts: the packboard and the slide/raft.
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