777 AIRCRAFT MAINTENANCE MANUAL
PASSENGER COMPARTMENT -DOORWAY LINING
EFFECTIVITY BEJ ALL 25-20-00
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PASSENGER COMPARTMENT -MAIN CEILING PANEL
Location
The main ceiling panels are above the aisles in the passenger compartment. They are on both sides of the conditioned air outlet grilles.
Physical Description
The panels are made of graphite that have a Tedlar lamination.
The main ceiling panels attach with lanyards (not shown), latches, and hinges (not shown). Some panels have speakers.
Training Information Point
For some panels you must disconnect the speaker wires to remove the panel.
To lower a main ceiling panel you do these things:
*
Remove the air grilles between the inboard and outboard main ceiling panels
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Turn the latches above the panel, there is one latch at each end of the panel
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Let the panel hang by the lanyards
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Disconnect the lanyards
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Lift the panel out of the hinges.
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PASSENGER COMPARTMENT -MAIN CEILING PANEL
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PASSENGER COMPARTMENT -LOWERED CEILING PANEL
Location
The lowered ceiling panels are inboard from the overdoor panels.
Physical Description
The panels are made of a graphite composite material and have a Tedlar lamination.
The panels attach to the stowage bin rail or structure with bolts.
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PASSENGER COMPARTMENT -LOWERED CEILING PANEL
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PASSENGER COMPARTMENT -OVERDOOR PANEL
Location
The overdoor panels are on the ceiling, inboard from each passenger entry door.
Physical Description
The panels are made of a graphite composite material and have a Tedlar lamination.
These components attach to the overdoor panels:
*
Power supply for the emergency lights
*
Lights
*
Speaker
*
Attendant information sign
*
Overhead electronics unit (OEU).
The panels attach with two lanyards and quarter turn fasteners.
Training Information Point
To open an overdoor panel you turn the quarter turn fasteners and lower the panel. If you need to remove the overhead panel you disconnect the lanyards from the outboard side of the panel.
EFFECTIVITY BEJ ALL 25-20-00
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777 AIRCRAFT MAINTENANCE MANUAL
PASSENGER COMPARTMENT -OVERDOOR PANEL
EFFECTIVITY BEJ ALL 25-20-00
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PASSENGER COMPARTMENT -CONDITIONED AIR OUTLET GRILLE
Location
The conditioned air outlet grilles are above the aisles in the passenger compartment. They are between the inboard and outboard ceiling panels.
Physical Description
The grilles are made of plastic. Each grille has hooks and a latch to attach the grille to structure.
Training Information Point
To remove the air outlet grilles, remove the grille with the emergency light lens first. When you install the grilles, install the grille with the emergency light lens last. Also, make sure each hook on the grille is correctly engaged with the pin in the ceiling structure. The red flag on the latch will not show when you latch the grille correctly.
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PASSENGER COMPARTMENT -CONDITIONED AIR OUTLET GRILLE
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PASSENGER COMPARTMENT -PASSENGER SERVICE UNITS
General
These are the different types of passenger service units (PSUs):
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Gasper air
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Oxygen
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Spacer
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Reading Light
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Passenger information sign (not shown)
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Temperature sensor (not shown)
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Ambient noise sensor (not shown).
The PSUs may be installed in any order. This makes it easy for you to put the PSUs in sequence for different passenger compartment layouts.
Physical Description
The PSUs attach to the PSU rails with two or four latches. The latches are also the hinges for the PSUs.
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