[1rnOO[BJJrnl1l;~
lIi.lI, _anual
OXYGEN SYSTEM
Smoking
is
prohibited while oxygen system
is
in
use.
OXYGEN
DURATION
The oxygen duration charts
in
Section
IV
show oxygen supply duration
of
a
fully
charged system as a function
of
cabin altitude and number
of
occu-
pants using the system.
• Figure 4-1
is
provided
for
Aircraft with
ZMR
100
Series Diluter
Demand Crew Masks.
• Figure 4-2
is
provided
for
Aircraft with
6600214
Series Demand
Crew Masks.
• Figure 4-3
is
provided for Aircraft with Scott
ATO
Crew Masks.
PASSENGER
OXYGEN
• Passenger masks are intended for use during an
emergency descent to an altitude not requiring sup-
plementaloxygen.
• Passenger masks
will
not provide sufficient oxygen for
prolonged operation above
34,000
feet cabin altitude.
Prolonged operation above
25,000
feet cabin altitude
with
passengers on board
is
not recommended.
1.
With the PASS OXY
Valve
in
the OFF
pOSition,
no
oxygen
is
sup-
plied to the cabin.
2. With the PASS OXY
Valve
in
the
NORM
position and the PASS
MASK
Valve
in
the AUTO position, the passenger oxygen masks
will
drop from their storage compartments
if
the cabin altitude
reaches
14,000
(±750) feet. Whenever the oxygen masks deploy,
the upper center panel lights
will
illuminate to provide maximum
visibility
for donning masks. The passengers must don the masks
and
pull
the attached lanyards to start the
flow
of
oxygen.
-_NOTE
~
If Generator and Battery switches are Off, automatic
,.
presentation of masks
will
not occur.
In
this event, turn
PASS
MASK
Valve
to
MAN
to deploy masks
if
passen-
ger oxygen
is
required.
3. With the
PASS OXY
Valve
in
the
NORM
position and the PASS
MASK
Valve
in
the
MAN
position, the passenger oxygen masks
will
drop from their storage compartments. The passengers must don
the masks and
pull
the attached lanyards to start the
flow
of
oxygen.
This should be used
if automatic presentation
of
the masks does not
occur.
2-52
Continued
FAA
APPROVED
4-30-76
REISSUED
2-25-81,
CHANGE
12
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