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35,000 feet).
5. RAM AIR switch-OPEN (select amount of ram
air desired for Eightcrew comfort).
High-cockpit temperature and smoke during
ground operation indicates ECS cooling fan
shutdown. This will occur with an external
air source (start cart) without electric power
on the aircraft. This results in an overtemperature
condition caused by operating without
ground cooling fans.
14.8.6 Cockpit Overpressurization on Deck.
Cockpit overpressurizationis sensedb y the aircrew and
verified by lower than normal cockpit altitude on the
cabin pressurea ltimeter. This condition could be caused
by a faulty cabin pressure controller or regulator.
1. AIR SOURCE pushbutton - OFF.
2. CABM PRESS switch-DUMP.
3. Canopy - OPEN (when cockpit pressurea ltimeter
equals the field elevation).
pii-1
The canopy may explosively leave the aircraft
upon unlocking of the canopy sill locks
if cockpit overpressureis not reduced.
14.8.7 CABIN PRESS Light
1. Oxygen mask - ON.
If below 15,000 feet:
2. CABIN PRESS switch - Cycle.
14.8.8 WSHLD HOT Light
1. WSHLD AIR switch - OFF.
If light remains illuminated:
2. AIR SOURCE pushbutton-OFF (below 35,000
feet).
Note
If light remains illuminated after air source
is off, the indication is faulty. Turn ECS on
and land as soon as practicable.
3. OBOGS master switch - BACKUP.
Oxygen breathing time on BACKUP is limited
and requires immediate mission planning.
See OBOGS emergency procedure.
See Figure 2-81 for oxygen breathing time
remaining.
Note
l 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.
l Restoration of service air (selecting
RAM) will return OBOGS to operation.
4. RAM AIR switch - OPEN.
5. Reduce airspeed to less than 300 knots or 0.8
Mach.
6. Land as soon as practicable.
14.9 OXYGEN SYSTEM FAILURE
If operational necessity prohibits immediate descent,
maintain cockpit altitude at the highest practicable level
to conserveB OS. Depressurizingt he cabin will increase
the duration of the backup and emergency oxygen sopply.
If fuel is not a problem and flight conditions permit,
descend below 10,000 MSL. BOS will not be available;
therefore,i t will be necessaryto releaseo ne side of the
oxygen mask in order to breathe unless emergency oxygen
is used. Emergency oxygen can be shut off and
reactivated as required. It is recommended that emergencyo
xygenb e reservedf or final approach,p ermitting
the aircrew to refasten oxygen masks.
NAVAIR 01-F14AAD-1
The aircrew will not have any indication of
a failure of the monitor. If the aircrew suspects
the onset of hypoxia at any time, immediately
select BACKUP. The monitor
maybe tested once the aircraft has descended
to a cabin altitude of 10,000 feet or less and
the ON position on the OBOGS master
switch has been reselected.
Oxygen breathing time on BACKUP is limitcd
and requires immediate mission planning.
See Figure 2-81 for oxygen breathing
time remaining.
14.9.1 OBOGS Light
1. BACKUP OXY PRESS - Check.
Oxygen breathing time on BACKUP is limited
and requires immediate mission planning.
See Figure 2-81 for oxygen breathing
time remaining.
14.92 B/U OXY LOW Light (Both Cockpits)
1. BACKUP OXY PRESS - Check.
If BACKUP OXY PRESS is less than 200 psi:
Note
Prepare for mask collapse. Breathing time
can vary from 2 to 4 minutes, depending
upon cabin altitude.
2. Cabin altitude-Less Than 10,000 Feet.
3. OXYGEN SUPPLY valves-OFF.
4. Oxygen masks - Release One Side,
NAVAIR 01-F14AAD-1
Before landing:
5. Oxygen masks and OXYGEN SUPPLY valves -
ON.
6. Emergency oxygen-Activate.
If BACKUP OXY PRESS is greater than 200 psi:
Note
Failure ofthe BN OXY LOW pressurere lay
will illuminate both pilot and RIO B/U OXY
LOW light. BACKUP OXY PRESS indicator
remains functional and displays true BOS
reserve.
2. BACKUP OXY PRESS -Monitor.
Note
Emergency oxygen can be shut off and reactivated
as required.
14.9.3 B/U OXY LOW Light (Pilot Only)
1. BOS CONTRiBRT OXY LOW cb - Check In
(7A4).
2. BACKUP OXY PRESS - Check.
Note
FailureoftheBOSCONTR/B/UOXY LOW
circuit breaker will illuminate only the pilot
B/U OXY LOW light. BACKUP OXY
PRESS indicatorremains functional and displays
true BOS reserve.
14.9.4 B/U OXY LOW Light (RIO Only)
I. BACKUP OXY PRESS -Check.
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F-14D 飞行手册 Flight Manual 2(114)
