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and operational requirements.
a If ECS airflow continues, ensure AIR
SOURCE CONTROL cb (RDZ) is in. If
cb RD2 has popped, ECS control is lost.
l Securing all electrical power while airborne
closes cockpit dump valve and cabin hot air
valve, opens bleed air shutoff valves and
dual pressurere gulator,a ndt her am air door
remainsa t its lastc ommandedp osition( tam
air door takes up to 50 seconds to open).
This results in full cold air to the cockpit,
uncontrolled bleed air to circulate, and the
loss ofnormal cabin dump capability. Minimize
low- speed (less than 0.25 Mach) and
ground operations as the heat exchanger
cooling fan will be inoperative and ECS
overheat condition will result.
14-26
Note
Elimination of smoke or fumes without electrical
power may be accomplished by ECS
airflow. To obtain maximum smoke/ fume
removal capability under this condition, fly
below 8,000 feet MSL and set the throttle to
maximum practical position. This will open
the cabin regulator valve for maximum ECS
airflow. If smoke or fumes are not eliminated,
it is most probable that smoke/fumes
areb eing regeneratedb y an ECS air leak. As
a last resort, jettison the canopy.
14.8.2 COOLING AIR Light
14.8.2.1 On Deck
1. AIR SOURCE pushbutton - Check L ENG, R
ENG, or BOTH ENG.
2. Throttles - Advance Without Closing Nozzles.
3. CANOPY DEFOG-CABIN AIR lever - CANOPY
DEFOG.
4. ECS -MAN/FULL HOT.
If light goes out:
5. THROTTLES -IDLE.
6. ECS -As Desired.
If light remains illuminated:
5. Secure systems.
14.8.2.2 In Flight
1. AIR SOURCE pushbutton - OFF.
pii-,,,,,,,
Failure to immediately select AIR SOURCE
pushbutton OFF upon indication of an ECS
leak (bleed air or hot air leak indication) or
upon hearing ECS turbine whine may result
in an uncontrollable electrical fire, catastrophic
ECS component failure, and/or loss
of flight controls.
2. OBOGS master switch - BACKUP.
NAVAIR Ol-FI4AAD-1
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
. 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.
If associatedw ith any otherd irect or indirect indication
of ECS malfunction:
3. Perform ECS Leak/Elimination of Smoke and
Fumes procedure, paragraph 14.8.1.
If not associated with any other direct or indirect indication
of ECS malfunction and operational requirements
dictate temporary reselection of RAM to regain
lost service systems (external fuel transfer, OBOGS,
cabin pressure,r ain removal, engine anti-ice, etc.):
3. AIR SOURCE pushbutton-RAM.
4. RAM AIR door switch-Full Increase.
5. AIR SOURCE pushbutton-OFF (when service
system is no longer required).
6. Land as soon as practicable.
14.8.3 TARPS ECS Lights Illuminate
1. TARPS sensors- OFF.
2. SYSTEM switch -OFF.
3. Pull TARPS cb’s:
a. RECON ECS CONT DC (9El)
b. RECON ECS CONT AC (2G4)
c. RECON HTR PWR PH A (2Bl)
d. RECON HTR PWR PH B (2Dl)
14-27 ORIGINAL
NAVAlR 61.FI4AAD-1
e. RECON HTR PWR PH C (2Fl)
f. RECON POD ( 1 E2)
g. RECON POD CONTR (9E2)
h. RECON POD DC PWR NO 2 (9E3)
i. RECON POD DC PWR NO l(9E4)
4. Ask for visual check of pod by wingman.
5. Land as soon as practicable.
14.8.4 SENSOR COND Light Illuminated and/
or PUMP Phase Circuit Breakers
Popped or APG-71 PM Acronym
1. RADAR COOLING switch-OFF.
2. RDR switch - OFF.
3. APG-71 PUMP PH A, B, and C cb’s - Pull (2G3,
2G6,2G7).
If other conditions exist that may indicate an ECS malfunction,
either directly or indirectly, perform ECS
Leak/Elimination of Smoke and Fumes procedure,
paragraph 14.8.1.
4. Land as soon as practicable.
14.8.5 Cockpit Temperature Control
Malfunction
1. TEMP mode switch - MAN.
2. TEMP thumbwheel -As Desired.
If temperature control is not regained:
3. VENT AIRFLOW thumbwheel - OFF.
Reduce airspeed to 350 knots or 1.5 Mach,
whichever is lower, to prevent ram air at temperature
above 110 OF from entering aircraft.
After ram air flow is stabilized, airspeed may
be increased as required for flightcrew
comfort or to increase flow to electronic
equipment.
4. AIR SOURCE pushbutton - RAM (below
　
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