737 MAX Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Systems Description
1.40.20
MN-FLT-OH-201
Passenger Portable Oxygen
1B785, 1B786, 1J585 - 1J594
First aid and supplemental portable oxygen cylinders are installed at suitable
locations in the passenger cabin. The cylinders are fitted with a pressure gage,
pressure regulator and on–off valve. The cylinders are pressurized to 1800 psi. At
this pressure and a temperature of 70 degrees Fahrenheit, (21 degrees Celsius) the
cylinders have a capacity of 4.25 cubic feet (120 liters) or 11 cubic feet (311 liters)
of free oxygen. Two continuous flow outlets are provided on each cylinder, one
regulates flow at two liters per minute for walk–around; the second outlet provides
flow at four liters per minute. The four–liter flow is used for first aid.
Duration can be determined by dividing capacity by outflow (e. g. 120 liters
divided by 4 liters/minute = 30 minutes).
Passenger Portable Oxygen Schematic
Fire Extinguishers
Fire extinguishers are located in the flight deck and passenger cabin.
OUTLET (4 LITER FLOW)
CONSTANT FLOW
CONSTANT
PRESSURE REGULATOR
PRESSURE GAUGE
OXYGEN CYLINDER
ON-OFF VALVE
PLACARD
FLOW
OUTLET
(2 LITER
FLOW)
March 1, 2021
Содержание 737-8
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