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PASSENGER OXYGEN - DESCRIPTION AND OPERATION
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1. General
_______ **ON A/C 001-049, 101-105,
(Ref. Fig. 001) **ON A/C 051-099,
(Ref. Fig. 001A) **ON A/C 106-149, 211-299,
(Ref. Fig. 001B) **ON A/C 151-199,
(Ref. Fig. 001C) **ON A/C 201-210,
(Ref. Fig. 001D) **ON A/C 301-399,
(Ref. Fig. 001E) **ON A/C 001-049, 051-099, 101-105,
(Ref. Fig. 002) **ON A/C 106-149, 211-299,
(Ref. Fig. 002A)
Location of the Emergency Oxygen Containers
Figure 001
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Location of the Emergency Oxygen Containers
Figure 001A
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Location of Emergency Oxygen Containers
Figure 001B
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Location of the Emergency Oxygen Containers
Figure 001C
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Location of the Emergency Oxygen Containers
Figure 001D
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Location of the Emergency Oxygen Containers
Figure 001E
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Passenger Oxygen System
Figure 002
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Passenger Oxygen System
Figure 002A
CES **ON A/C 151-199,
(Ref. Fig. 002B)
**ON A/C 201-210,
(Ref. Fig. 002C)
**ON A/C 301-399,
(Ref. Fig. 002D)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
If there is a sudden loss of cabin pressuriation , emergency oxygen container supply emergency oxygen to the passengers and to cabin attendants. Each chemical oxygen unit is made up of a solid-state chemical oxygen generator and two or more continuous-flow oxygen masks. Flexible supply hoses connect the masks to the chemical oxygen generators. The chemical oxygen units are installed:
-above the passenger seats,
-in the lavatories,
-
at the cabin attendants stations,
-
at the cabin attendants working areas.
To show the passengers how to use the emergency oxygen, demonstration masks
are used. The demonstration masks do not operate and are not connected to
the system.
2. Operation
_________
**ON A/C 001-049, 051-051, 056-056, 058-099, 101-149, 151-199, 201-299,
301-399,
(Ref. Fig. 003) When the cabin pressure decreases to a pressure equivalent of 4260 +0 -150 m (14000 +0 -500 ft.), the altitude pressure switch 16WR will close. This action operates the emergency oxygen system automatically. If the altitude pressure switch fails, you can operate the system with the 'MASK MAN ON' pushbutton switch 14WR. This switch is installed in the cockpit overhead panel 21VU.
Passenger Oxygen System
Figure 002B
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Passenger Oxygen System
Figure 002C
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Passenger Oxygen System
Figure 002D
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Passenger Oxygen System - Controls and Indications
Figure 003
EFF : 101-149 001-049, 051-051, 056-056, 058-099, 35-20-00Config-1, 151-199, 201-299, 301-399, Page 14 Aug 01/05
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A. Sequence of Operation The doors of the emergency oxygen containers open and the masks drop out for the passenger's and the cabin attendant's use. A taped message is transmitted on the passenger address system and the SYS ON indicator light 12WR comes on. The indicator light is installed on the cockpit overhead panel 21VU. The emergency oxygen flows when you pull the oxygen mask towards your face. This starts the chemical oxygen generator which gives approximately 15 minutes supply of oxygen.
**ON A/C 052-055, 057-057,
(Ref. Fig. 003A) When the cabin pressure decreases to a pressure equivalent of 4260 +0 -150 m (14000 +0 -500 ft.), the altitude pressure switch 16WR will close in normal operation. For the operation on high altitude during ground operation, take-off and landing, above 4570 m (15000 ft.) you have to switch the high altitude switch 899WR to the ON position. The normal setting of the pressure switch is deactivated and the second setting of the pressure switch will close at 4870 + 0/ - 150m (16000 +0/- 500 ft.) and an unintentional activation of the system is avoided. The emergency oxygen system operates automatically. If the altitude pressure switch fails, you can operate the system with the 'MASK MAN ON' pushbutton switch 14WR. This switch is installed in the cockpit overhead panel 21VU.
A. Sequence of Operation The doors of the emergency oxygen containers open and the masks drop out for the passenger's and the cabin attendant's use. A taped message is transmitted on the passenger address system and the SYS ON indicator light 12WR comes on. The indicator light is installed on the cockpit overhead panel 21VU. The emergency oxygen flows when you pull the oxygen mask towards your face. This starts the chemical oxygen generator which gives approximately 13 minutes supply of oxygen.
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