PILOT’S OPERATING HANDBOOK
SECTION 4
NORMAL PROCEDURES
EASA Approved
Edition 0 -- October 31, 2013
Rev. 1
Page 4.4.23
IN-FLIGHT AVAILABLE OXYGEN QUANTITY
Oxygen pressure
Read
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside air temperature (OAT)
Read
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 - Determine the usable oxygen percent using the chart Figure 4.4.1.
Figure 4.4.1 - Usable oxygen
2 - Determine the oxygen duration in minutes by multiplying the values read on table Figure 4.4.2 by the percent
obtained with the chart Figure 4.4.1.
Number of passengers
Duration :
Passengers, plus 1 pilot
Duration :
Passengers, plus 2 pilots
0
226
113
1
162
94
2
127
81
3
104
71
4
88
65
Figure 4.4.2 - Oxygen duration