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nozzle, increasing descent range.
14.5.3.2 Single-Engine Cruise Operations
1. FUEL SHUT OFF handle - Pull (inoperative
engine).
2. If on final approach or landing, refer to single engine
landing procedures, paragraphs 15.2 and
15.3.
When eitherf uselaget ape reaches4 ,500 poundso f fuel
or less:
3. WING/EXT TRANS switch - OFF.
The WING/EXT TRANS switch automatically
returns to AUTO if the REFUEL
PROBE switch is placed to ALL EXTEND,
DUMP is selected, or there is 2,000 pounds
remaining in the low side. The WMG/EXT
TRANS switch can be reselectedto OFF after
a 5-second delay, the REFUEL PROBE
is retracted, or DUMP is secured.
4. FEED switch - Operating Engine Side.
When pilot workload permits close monitoring of tie1
distribution:
5. FEED switch -Inoperative Engine Side.
w--w------
NAVAIR Ol-F14AAD-1
If the fuselage quantity on the inoperative engine side
begins to increase:
6. FEED switch - Immediately Move to Operating
Engine Side.
An increase in fuel quantity on the inoperative
engine side indicates that the sump tank
interconnect valve is not open. Fuel available
is limited to the quantity on the operating
engine side.
If the fuselage fuel quantity on the inoperative engine
side begins to decrease:
6. FEED switch-Remain On Inoperative Engine.
7. WING/EXT TRANSFER switch - AUTO.
8. Refer to appropriate hydraulic system failure,
14.54 Engine Overspeed (Nq or N2 OSP Legend)
1. Throttle (affected engine) - IDLE.
If overspeedc ontinues:
2. ENG MODE SELECT-SEC. Verify ENG SEC
light illuminated.
If overspeedc ondition persists:
3. Throttle (affected engine)- OFF.
Note
l Fuel flow is automatically secured when
‘pm reaches 110 percent. To regain fuel
flow, the throttle must be cycled OFF then
to IDLE.
l An overspeed condition in excess of 1 IO
percent will result in temporary loss of
‘pm indication until N2 falls below 110
A.5 percent. EGT and FF indicators will
continue to function normally.
4. Refer to Single-Engine Cruise Operations, paragraph
14.5.3.2.
5. Land as soon as practicable.
14.5.5 Engine START VALVE Light
1. Ensure ENG CRANK switch - OFF.
2. AIR SOURCE pushbutton-OFF.
Note
If operational necessity dictates, AIR
SOURCE L ENG or R ENG may be selected
provided the START VALVE light remains
out. Crossbleed airstarts may not be available
to the affected engine after a START
VALVE light illuminates, because of possible
overspeedd amage.
If on deck:
3. Throttle (affected engine) - OFF.
If airborne:
3. ENG START cb - Pull (RF]).
4. OBOGS master switch-BACKUP.
Oxygen breathing time on BACKUP is limited
and requires immediate mission planning.
See OBOGS emergency procedure.
See Figure 2-8 1 for oxygen breathing time
remaining.
.
.
14.5.6
Note
When ECS service air to the OBOGS concentrator
is shut off, the aircrew has approximately
30 seconds before
depleting residual OBOGS pressure and
mask collapse.
Restoration of service air (selecting
RAM) will return OBOGS to operation.
Engine Transfer to SEC Mode
In SEC mode, idle lockup protection is lost.
Decelerate below 1.1 TMN before retarding
throttle to IDLE to avoid supersonic inlet
buzz and possible compressor stall.
Note
l Engine ac generator failure, indicated by
loss of ‘pm and nozzle gauge indications,
will shift the engine into SEC mode without
illuminating the SEC light. Main highenergy
ignition will be inoperative.
Backup ignition is required for airstarts.
. SEC mode transfer while in AB may result
in pop stalls. Nonemergency manual
selection of SEC mode airborne should be
performed in basic engine with the power
set above 85-percent ‘pm.
If engine transfers to SEC mode:
1. Throttle (affected engine) - Less Than MIL.
2. ENG MODE SELECT-Cycle.
If PRI mode is restored:
3. Maintain constant subsonic airspeed in level
flight.
If WING SWEEP advisory light is illuminated,
cycling L AICS circuit breaker (LFI)
may cause unintentional wing sweep unless
WING SWEEP DRIVE NO. 1 (LDI) and
WG SWP DR NO. Z/MANlJV FLAP (LEI)
cb’s are pulled.
4. Affected L or R AICS cb - Cycle (LFL, left or
LGI, right).
If engine remains in SEC:
3. ENG MODE SELECT - SEC.
4. Avoid abrupt throttle movements.
5. Land as soon as practicable.
Landing in SEC mode may increase landing
roll becauseo floss ofnozzle reset.I frunway
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F-14D 飞行手册 Flight Manual 2(104)
