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displays.
Oxygen Systems
Two independent oxygen systems are provided, one for the flight deck and one for
the passenger cabin. Portable oxygen cylinders are located throughout the airplane
for emergency use.
Flight Deck Oxygen System
The flight deck oxygen system uses quick–donning masks and regulators located
at each of the flight crew and observer stations. System oxygen pressure is
displayed on the MFD STATUS display.
Flight crew and observer masks and regulators are installed behind oxygen mask
panels near each seat. Squeezing the red oxygen mask release levers and pulling
the unit outward releases the mask from stowage and:
• inflates the mask harness
• starts the flow of oxygen to the mask
• selects the mask microphone (the boom microphone is deselected).
The boom microphone can be reselected by closing the left oxygen panel door and
pushing and releasing the reset/test switch. This also shuts off oxygen to the mask.
The oxygen flow can be restored by opening the left oxygen panel door.
787 Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Systems Description
Boeing Proprietary 1.40.9
Crew Oxygen Mask Microphone Test
The oxygen mask microphone can be tested without removing it from the storage
box using the following procedure:
• select the FLIGHT interphone transmitter and set the speaker volume as
desired
• push and hold a MIC switch on either the audio control panel or the glare
shield
• push both the oxygen mask RESET/TEST switch and the
EMERGENCY/TEST selector.
The sound of oxygen flowing is heard through the speaker, verifying microphone
operation.
Passenger Cabin Oxygen System
The passenger cabin oxygen system is supplied by gaseous oxygen stored in small
high pressure cylinders. The passenger and flight attendant oxygen masks and
gaseous oxygen cylinders are located throughout the cabin in passenger service
units (PSUs) fitted to the ceiling panels. Oxygen flows from a PSU cylinder when
any mask hanging from that PSU is placed over the nose and mouth. Normal
breathing initiates the oxygen flow. The system regulates the pressure and
distributes oxygen to the masks by providing small pulses of oxygen to the user
during inhalation. The oxygen cylinders are single use devices and once activated,
provides oxygen until the cylinder is depleted.
The masks automatically drop from the PSUs prior to the cabin altitude reaching
the greater of:
• 15,000 feet, or
• origin airfield altitude +2000 feet, or
• destination airfield altitude +2000 feet.
The passenger cabin masks can be manually deployed from the flight deck by
pushing the PASS OXYGEN switch on the overhead panel to the ON position.
The passenger cabin system provides oxygen to the main seating area, galleys,
flight attendant stations, and lavatories.
Portable Oxygen Bottles
Portable oxygen bottles are stowed in various locations in the passenger cabin.
The bottles are fitted with disposable masks and are used for first aid purposes or
as walk–around units. All bottles are identical in size and capacity.
787 Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Systems Description
1.40.10 Boeing Proprietary
Doors
The airplane has eight passenger cabin entry doors, a flight deck door, and two
large cargo doors. It also has a bulk cargo door, an overhead door in the flight deck
ceiling, one equipment access door located forward of the nose gear, and two
electrical and electronic (E/E) equipment access doors, one aft of the nose gear
and one aft of the wing box.
An EICAS message is displayed when the flight deck door, a passenger cabin
door, or large cargo door is not closed, latched, and locked. Likewise, an EICAS
message is displayed when the bulk cargo door, overhead flight deck door, or an
access door is not closed and latched (there are no locks on these doors).
Flight Deck Door
The flight deck door and aft wall meet requirements for resistance to ballistic
penetration and intruder entrance. The door opens into the cabin. When closed, the
door locks when electrical power is available and unlocks when electrical power
is removed. A viewing lens in the door allows observation of the cabin area
immediately outside the flight deck door. The door can be manually opened from
the flight deck at anytime by turning the door handle.
The flight deck door features an inset decompression panel that allows air to vent
from the passenger cabin into the flight deck in the event of a rapid decompression
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本文链接地址：
787机组操作手册Flight Crew Operations Manual 1(110)
