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* Grille
* Latches
* Spring return clip
* Baffle.
The grille is a one-piece plastic panel.
Two latches secure the bottom edge of the grille to the inner
chord. Sidewall panel clips secure the top edge of the grille to
the sidewall panels.
The spring return clip secures adjacent air return grilles to each
other and prevents vibration of the grilles.
A flexible baffle on the outboard side of the grille controls
reverse air flow from the lower lobe if there is a lower lobe fire.
Training Information Point
NOTE: Exposure to direct sunlight may cause the air return
grilles to have a color shift.
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - AIR RETURN GRILLES
EFFECTIVITY
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EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - AIR RETURN GRILLES
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - AIR RETURN GRILLES
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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Physical Description
The passenger seats attach to the seat tracks in the floor. You
may move the seats forward or aft for different cabin
configurations.
Each seat has a lap belt.
The back of each seat reclines. To recline the seatback, push
the button on the armrest and apply force to the seatback.
Most seats have trays which fold down. Seats adjacent to
windscreens have trays under their armrests.
For seats adjacent to escape hatches, the armrest attaches to
the escape hatch (rather than the seat). This makes sure that
the escape hatches can open quickly in an emergency.
The seats are two- or three-passenger assemblies. Seat
placement allows four, five, or six abreast configurations.
You can use the seat cushions as flotation devices.
You can stow life vests in the space under the seats.
Training Information Point
When you adjust the seats for class configuration, you must also
move the PSUs to agree with seat position.
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SEATS
EFFECTIVITY
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EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SEATS
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SEATS
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
25-20-00-005
Purpose
Passenger service units (PSUs) provide these functions for
passengers:
* Emergency oxygen
* Advisory information
* Call switches.
Physical Description
The PSUs include these components:
* FASTEN SEAT BELT and NO SMOKING signs
* Individual air outlets (gasper)
* Passenger address loudspeakers
* Attendant call switches and lights
* Oxygen masks
* Oxygen generator
* Reading lights.
PSUs mount to inboard and outboard support rails. They have
hinges on the outboard side and latches on the inboard side.
Small holes in the PSU face panel give access to the release
latches. A lanyard limits movement as the unit swings open.
Location
PSUs are above each row of seats.
Training Information Point
NOTE: To open passenger service units, insert a small allen
wrench or other applicable tool into the latch release
hole. Then lower the service unit.
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SERVICE UNITS
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
25-20-00-006
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SERVICE UNITS
EQUIPMENT/FURNISHINGS - PASSENGER COMPARTMENT - PASSENGER SERVICE UNITS
EFFECTIVITY
SHZ ALL 25-20-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
25-20-00-006
Purpose
Attendant service units (ASUs) and lavatory service units
(LSUs) provide emergency oxygen for attendants or
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