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For pressure breathing or smoke/fumes protection,
rotate the emergency select knob on
the underside of the mask clockwise toward the
crewmember to the EMERGENCY position
(see Figure 17-10). This position provides a
steady flow of pressurized oxygen to the face
cone and the smoke goggles (if installed).
Maintenance Considerations
Service the oxygen system any time the pressure
gauge indicates inadequate supply, or
when the overboard discharge indicator shows
an overpressure event has occurred.
If the oxygen bottle depletes to empty or if the
oxygen discharge indicator ruptures, the system
must be purged and the oxygen bottle replaced
before the next flight. The original oxygen bottle
must be returned to the supplier for refurbishment
or replacement before further use.
Service the oxygen bottle through the filler
port near the forward bulkhead, inside the
right nose baggage door (Figure 17-13). Only
use aviator oxygen (MIL-O-27210, Type 1)
for servicing. The fill valve incorporates a
check valve and filter. A pressure sealing
cap prevents contaminants from entering the
oxygen system.
LIMITATIONS
Table 17-1 indicates approximate normal duration
of oxygen supply with different numbers
of users.
Due to human physiological limitations,
the passenger oxygen system
is not satisfactory for continuous operation
above 25,000 feet cabin altitude.
The crew oxygen system is not
satisfactory for continuous operation
above 40,000 feet cabin altitude.
Individual physiological limitations
may vary. If crew or passengers experience
hypoxia symptoms, descend
to a lower cabin altitude.
No smoking when oxygen is being
used or following use of passenger
oxygen until lanyards have been
reinstalled.
Oil, grease, soap, lipstick, lip balm,
and other fatty materials constitute
a serious fire hazard when in contact
with oxygen.
Oxygen use limitations are further governed by
the applicable regulations. In the U.S.A., the
pilot must have the oxygen mask on his face during
normally pressurized flight for single-pilot
Part 135 operations above FL 250 or above single-
pilot Part 91 operations above FL 350.
EMERGENCY/ABNORMAL
For specific information on emergency/abnormal
procedures, refer to the appropriate
FAA-approved abbreviated checklist or AFM.
CAUTION
WARNING
WARNING
Figure 17-13. Oxygen Bottle
SQUAT SWITCH SYSTEM
DESCRIPTION
This section provides an overview of squat
switch system functions, operation, and information
about when a squat switch is not operating
properly.
There is one squat switch on each left and right
main landing gear. The switch indicates when
weight is on that wheel. The squat switches
are positioned in the landing gear assembly, and
detect when wheel position changes up or down,
as caused by weight-on-wheels or weight-offwheels.
Refer to Chapter 14—“Landing Gear
and Brakes” for more detail.
Each squat switch is connected to several aircraft
systems. Some systems are connected to
both squat switches. Some systems function
differently depending on whether the weight
is on one wheel or on both wheels. Some systems
are sensitive to whether only a specific
wheel (left or right) has weight on it.
If the squat switches are not in the same position
(weight-on-wheels or weight-offwheels)
for more than 2 seconds, the amber
510OM-00 17-11
CITATION MUSTANG OPERATING MANUAL
OXYGEN SUPPLY CHART 22 FT3
AVAILABLE TIME IN MINUTES
CABIN
ALTITUDE
2
COCKPIT
2
COCKPIT,
1 CABIN
2
COCKPIT,
2 CABIN
2
COCKPIT,
3 CABIN
2
COCKPIT,
4 CABIN
8000
10,000
15,000
20,000
196
225
220
178
74
78
79
73
46
47
48
46
33
34
35
34
26
27
27
27
25,000
30,000
35,000
40,000
98
129
175
246
55 39 30 24
AVAILABLE TIME IN MINUTES
CABIN
ALTITUDE
1
COCKPIT
1
COCKPIT,
1 CABIN
1
COCKPIT,
2 CABIN
1
COCKPIT,
3 CABIN
1
COCKPIT,
4 CABIN
8000
10,000
15,000
20,000
392
450
440
356
91
95
96
92
52
53
54
53
36
37
37
37
28
28
29
29
25,000
　
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