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• Amber F/W SHUTOFF L-R message
• Amber FUEL FLTR BP L-R message
• Amber FUEL PRESS LO L-R message
• Amber or white ENG A/I COLD L-R
message
• Amber T2 HTR FAIL L-R message
CITATION MUSTANG OPERATING MANUAL
7-18 510OM-00
Figure 7-25. Oil Pressure and Temperature
Window (Normal)
Figure 7-26. Oil Pressure and Temperature
Window (Reversionary)
CITATION MUSTANG OPERATING MANUAL
510OM-00 7-19
OIL PRESS LO L-R
The red OIL PRESS LO L-R message indicates
the oil pressure is below the minimum acceptable
pressure (lower red line limit on the
oil pressure display). This is an indication
that engine failure has occurred or may soon
occur. Immediate pilot action is required.
Refer to “Emergency/Abnormal Procedures”
in the AFM. This message does not appear
during startup, or if the engine is shut down,
and cannot appear when the battery switch is
selected to EMER power.
ENG CTRL SYS L-R
The amber ENG CTRL SYS L-R message indicates
the engine control system is not operating
normally. The pilot must closely monitor the engine
for signs of abnormal engine operation. This
indication is only valid when normal DC power
is available. This message will be posted any
time emergency power is selected.
F/W SHUTOFF L-R
The amber F/W SHUTOFF L-R message indicates
the firewall shutoff valve has closed on
the corresponding side. Fuel cannot travel to
the affected engine from either tank. Refer to
Chapter 8—“Fire Protection” for more information.
This indication is valid only when
normal DC power is available.
FUEL FLTR BP L-R
The amber FUEL FLTR BP L-R message indicates
fuel filter bypass is impending, or is
occurring. Contamination of the engine (and
possible engine damage or engine failure) is
imminent or is occurring. Refer to Chapter
5—“Fuel System” for more information. This
indication is valid only when normal DC power
is available.
FUEL PRESS LO L-R
The amber FUEL PRESS LO L-R message
appears when fuel pressure falls below 4.65
psig, and extinguishes when fuel pressure rises
above 6.4 psig. This may indicate impending
engine failure or flameout. Refer to Chapter
5—“Fuel System” for more information. This
indication is valid only when normal DC power
is available, and does not appear when the affected
engine is shut down (throttle selected
to CUT OFF).
ENG A/I COLD L-R
The amber or white ENG A/I COLD L-R message
indicates engine anti-ice has been selected
but the engine inlet is still cold. If the aircraft
is in icing conditions, this problem may cause
engine damage (due to ice ingestion) and/or
engine failure. Refer to Chapter 10—“Ice and
Rain Protection” for more information. This
indication is valid only when normal DC power
is available, and is suppressed during engine
shutdown.
T2 HTR FAIL L-R
The amber T2 HTR FAIL L-R message indicates
failure of the anti-ice heating system for the T2
probe in the engine inlet. If the aircraft is in icing
conditions, this failure may cause improper
FADEC operation and/or engine failure. This
also indicates an increased risk of ice ingestion
into the engine because ice may form on the T2
probe, then break off and enter the engine. Refer
to Chapter 10—“Ice and Rain Protection” for
more information. This indication is valid only
when normal DC power is available, and is suppressed
during takeoff and landing.
OIL PRESS LO L-R
ENG CTRL SYS L-R
F/W SHUTOFF L-R
FUEL FLTR BP L-R
FUEL PRESS LO L-R
ENG A/I COLD L-R
T2 HTR FAIL L-R
Figure 7-27. CAS Window
OPERATION
For specific, current instructions on normal operating
procedures, refer to the AFM. Where
the following information differs from the
AFM, use the AFM information and follow
the AFM instructions. These procedures focus
only on powerplant items in these stages of aircraft
operations. Other systems are also
involved, and steps are required for them, but
are not noted here. Refer to the AFM or checklist
for details.
PREFLIGHT
In addition to the other systems that must be
checked during preflight, the powerplants require
particular attention. Before preflight,
ensure that all four engine covers are removed
and stowed, and that both throttles are selected
to CUT OFF.
Inspect the engine intakes and exhaust (including
the fan bypass duct) for any indication
of ice or foreign object contamination. Ensure
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