(2)
 Open the access door 812.

 4. Procedure
_________ R **ON A/C 001-049, 055-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 601/TASK 35-10-00-991-003)
 **ON A/C 051-054,

 (Ref. Fig. 601A/TASK 35-10-00-991-003-A) R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 35-10-00-210-053
 A. Inspection of oxygen pressure for the flight crew
 (1)
 Measure the outside temperature (OAT) and the cockpit temperature with a temp indicating.

 (2)
 Calculate the reference temperature:
 OAT + COCKPIT TEMP

 __________________ 2

 (3)
 On the referenced illustration, find the minimum oxygen pressure for the flight crew, function of the number of crew members.

 (4)
 Make sure that the pressure shown on the pressure gage of the cylinder is more than the minimum oxygen pressure found.

 -If the pressure is less the oxygen cylinder must be changed. (Ref. TASK 35-11-41-000-001) (Ref. TASK 35-11-41-400-001)
 EFF : ALL

35-10-00Page 602

 Minimum Flight Crew Oxygen Pressure Figure 601/TASK 35-10-00-991-003 
R  EFF : 001-049, 055-099, 101-149, 151-199, 201-299, 301-399, 401-499,  35-10-00 Page 603 Aug 01/05
 CES 

R R  Minimum Flight Crew Oxygen Pressure Figure 601A/TASK 35-10-00-991-003-A
 EFF :  051-054,  35-10-00 Page 604 May 01/05
 CES 

R  **ON A/C 051-099, 
R  Subtask 35-10-00-210-053-A 
R  A. Inspection of oxygen pressure for the flight crew 
R  (1) Measure the outside temperature (OAT) and the cockpit temperature 
R  with a temp indicating. 
R  (2) Calculate the reference temperature: 
R  OAT + COCKPIT TEMP 
R  __________________ 
R  2 
R  (3) On the referenced illustration, find the minimum oxygen pressure for 
R  the flight crew, function of the number of crew members. 
R  **ON A/C 055-099, 
R  (Ref. Fig. 601/TASK 35-10-00-991-003) 
R  **ON A/C 051-054, 
R  (Ref. Fig. 601A/TASK 35-10-00-991-003-A) 
R  **ON A/C 051-099, 
R  (4) Make sure that the pressure show on the pressure gage of the cylinder 
R  or on the filling indicator (5HT) is more than the minimum oxygen 
R  pressure found. 
R  If the pressure is less the oxygen cylinder must be alternatively: 
R  - replenished (Ref. TASK 12-14-35-600-001), 
R  - or changed (Ref. TASK 35-11-41-000-001) (Ref. TASK 35-11-41-400-
R  001).

 CES R **ON A/C ALL

 5. Close-up
________
 Subtask 35-10-00-410-054

 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 812.

 (3)
 Remove the access platform(s).

 EFF : ALL

35-10-00Page 606

 OXYGEN STORAGE - DESCRIPTION AND OPERATION
__________________________________________
 1.
 General

_______ The flight crew oxygen is supplied from a high-pressure oxygen cylinder with a pressure regulator/transmitter directly connected to the cylinder head. It is installed in a cradle with two quick-release clamps between frames 11 and 13 in the avionics compartment. The installation can survive crash loads of 10G's in all directions.

 2.
 Description

___________
R **ON A/C 001-049, 055-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 A. Oxygen Cylinder
 (Ref. Fig. 001)

 (1) The high pressure oxygen cylinder is made of composite material. The cylinder has a capacity of 2183l (77 cubic feet) (NTPD: Normal Temperature Pressure Dry) at a pressure of 127.5 bar (1850 psig).
 **ON A/C 051-054,
 A. Oxygen Cylinder
 (Ref. Fig. 001)

 (1) The high pressure oxygen cylinder is made of composite material. The cylinder has a capacity of 1418l (50.1 cubic feet) (NTPD: Normal Temperature Pressure Dry) at a pressure of 127.5 bar (1850 psig).
 **ON A/C ALL
 (2) The cylinder head is a valve assembly which is made of these components:
 (a)
 A manual slow-opening ON/OFF valve with a metal seat and poppet, to reduce the explosion hazard. The valve is used during the replacement of the cylinder and to isolate the cylinder if there is a leak in the oxygen system.
　
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