CAE SimuFlite Citation Bravo, Pilot Training Manual

Page: 463 / 718

Avionics
Citation Bravo
Developed for Training Purposes
5B-89
September 2005
Display Guidance
Computer Cooling Fan
Failure
Illumination of the IC1 FAN or IC2
FAN annunciator (see
Figure 5B-
55)
indicates a failure of the pilot's
or copilot's IC-600 cooling fan,
respectively. Illumination of both
annunciators indicates a failure of
both cooling fans. If the fan failure
occurs while on the ground, remove
power by pulling the PFD 1, PFD2,
and/or MID circuit breakers, as
appropriate, on the right CB panel to
prevent overheating. Limit ground
operating time to 10 minutes. Prior
to takeoff, reset the pulled circuit
breakers and monitor the IC1/IC2
HOT annunciators. Return to normal
procedures.
If the fan failure occurs in flight, mon-
itor the IC1/IC2 HOT annunciators.
PFD/MFD
Overtemperature
Illumination of the PFD HOT or
MID HOT annunciator indicates an
overtemperature condition caused by
the failure of one or both of the inter-
nal fans. Continued use of the dis-
play without the fan may lead to
display failure of the PFD or MFD.
If one of these annunciators illumi-
nates in flight, select MANUAL
COLD or AUTOMATIC COLD
above 31,000 ft on the cockpit tem-
perature selector to provide addi-
tional system cooling. Use the
display controller DIM knob to
reduce display brightness.
If this fails to extinguish the PFD
HOT or MFD HOT annunciator, pull
the affected display's circuit breakers
(PFD 1, PFD2, and/or MFD on the
right circuit breaker panel) to enable
the tubes to cool. However, restoring
power will likely result in another
overtemperature indication. Consid-
eration should be given to leaving
the CBs disengaged, using the oppo-
site side PFD or PFD reversion to
the MFD (as appropriate) to com-
plete the flight, and restoring power
to the display for the approach and
landing, if necessary.
Switch the affected display DIM
knob to OFF to operate on the rever-
sionary mode as applicable. Land as
soon as practicable.
Depending upon which PFD is the
affected display, the output of the
applicable IC-600 may be displayed
on the MFD by turning the DIM knob
on the affected PFD controller to OFF.
If the overtemperature condition
occurs on the ground, determine the
cause prior to takeoff.
Display Guidance
Computer Overtemperature
Illumination of the IC1 HOT or IC2
HOT annunciator (see
Figure 5B-
55
)
indicates an overtemperature
condition of the pilot's or copilot's
IC-600 computer, respectively, and
is most likely caused by the failure
of the internal fan. Illumination of
both annunciators indicates an over-
temperature condition of both IC-
600 computers. Continued use of the
guidance computer without the fan
may lead to computer failure. If one
of these annunciators illuminates in
flight, remove power by pulling the
DGC1 or DGC2 circuit breakers (as
appropriate) to enable the computer
to cool. However, restoring power
will likely result in another overtem-
perature indication. Consideration
should be given to leaving the CBs
disengaged and using the opposite
side computer for the approach and
landing. Land as soon as practicable.