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If the aft avionics cooling fan has been disabled, the
OFF/RAM position of the ECS MODE switch will
not energize the aft avionics cooling fan. In this
case, only limited avionics cooling is available using
ram air. With the AV COOL switch set to EMERG,
only the following essential avionics receive adequate
cooling: FCC A, one AHRS, and the right
transformer rectifier. All other avionics systems are
susceptible to failure or shutdown due to heat. Ambient
temperature significantly influences the rate
at which avionics systems fail.
Do not operate the windshield anti-ice/rain removal
system on a dry windshield. If a WDSHLD HOT
caution appears, place the WINDSHIELD switch to
OFF immediately to prevent heat damage to the
windshield.
1. WINDSHIELD switch - OFF
If visible moisture present (ice/rain) -
1. WINDSHIELD switch - ANTI ICE or RAIN
(only as required to clear windshield)
If caution remains and switch OFF -
2. Throttles - Minimum practical.
Consider -
3. BLEED AIR knob - OFF (DO NOT CYCLE.)
4. Emergency oxygen green ring - PULL
5. Maintain altitude below 10,000 feet.
6. Maintain airspeed below 325 KCAS (300 to 325
KCAS optimum).
7. ECS MODE switch - OFF/RAM
8. AV COOL switch - EMERG
Once below 10,000 feet -
9. Consider removing mask and resetting
emergency oxygen.
10. CABIN PRESS switch - RAM/DUMP
11. OXY FLOW knob - OFF
12. OBOGS control switch - OFF
13. Land as soon as practical.
If AV AIR HOT caution appears OR aft
avionics cooling fan disabled -
14. Non-essential avionics equipment - OFF (e.g.,
RADAR, UFCD controlled avionics, ECM, sensors,
MC2)
15. Land as soon as possible.
A1-F18EA-NFM-000
Figure 12-1. Warning/Caution/Advisory Displays (Sheet 28 of 55)
V-12-30 ORIGINAL
DDI Cautions and Caution Lights
INDICATOR · CAUSE / REMARKS CORRECTIVE ACTION
WING UNLK
· Either wing indicates unlocked (beer can up).
· Catapult with the WINGFOLD switch in FOLD
or HOLD.
· An electrical failure in the WING UNLK caution
circuitry.
The wings cannot be unlocked or folded inflight,
even if the WINGFOLD switch is placed to FOLD
or HOLD. If a WING UNLK caution appears with
the beer cans down, an electrical failure has occurred
in the caution circuitry and not in the wing
unlock circuitry. If the WINGFOLD switch is inadvertently
placed to HOLD or FOLD inflight, the
wings unlock and the ailerons fair when the aircraft
transitions to WonW during landing. In FOLD, the
wings fold when the aircraft decelerates below 66
KCAS during landing rollout.
Ensure the WINGFOLD switch is lever-locked in
the SPREAD position during takeoff checks. If the
wings are commanded to unlock or fold during a
catapult shot, the wings unlock, the ailerons fair,
the wings may fold partially, and the aircraft will
settle.
If the wings are unlocked during landing rollout,
ensure the NWS button is not pressed and full-time
NWS HI is not engaged. In NWS HI, rudder pedal
inputs command significantly greater nosewheel deflections
and may result in a loss of directional control.
If caution appears while inflight -
1. WINGFOLD switch - VERIFY SPREAD
2. Beer cans - CHECK DOWN
If wings inadvertently unlocked/folded on
catapult shot -
1. Do not change WINGFOLD switch position.
2. Climb to a safe altitude.
3. WINGFOLD switch - SPREAD
If the wings are partially folded -
4. Unload the aircraft to reduce aero forces.
FOR LANDING
If both beer cans down -
5. Make a normal landing.
If both beer cans are up -
5. Make an arrested landing (if practical)
6. Make sure NWS HI not engaged.
A1-F18EA-NFM-000
Figure 12-1. Warning/Caution/Advisory Displays (Sheet 29 of 55)
V-12-31 ORIGINAL
FCES CAUTIONS
INDICATOR · CAUSE / REMARKS CORRECTIVE ACTION
FCS
Initial
FCS
FCES
Caution Light
²Flight Controls,
Flight Controls²
INITIAL FCS/FCES CAUTION PROCEDURES
· An FCS/FCES related failure has occurred.
FCS format Xs and/or BLIN codes identify the
location and type of failure. For certain FCS components,
BLIN codes may be the only indication of
a failure, and should be treated with the same initial
level of concern as failures that also produce
Xs. An FCS RESET attempt clears the FCS caution
whether or not the reset was successful. A successful
reset is indicated by the RSET advisory and
removal of all Xs from the FCS format. The RSET
advisory is displayed if a reset attempt was unsuccessful.
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NATOPS Flight Manual 飞行手册 2(32)
