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STUDENT GUIDE T-39N/G NATOPS
4. AFT FUS HOT light at 135C (battery compartment, hydraulic reservoir, pressurization
bleed air ducts).
5. Pulling the FIRE handle:
a. Closes respective fuel shutoff valve.
b. Places respective DC and AC gen's off line.
c. Closes respective engine bleed air valve & emergency bleed air valve for RH
engine.
d. Positions direction valve (if RH).
e. Arms the fire bottle discharge valves.
f. Fire bell shutoff.
g. Arms the fire extinguisher selector switch.
h. Illuminates the fire control panel.
i. Deactivates the thrust reverser hydraulic control valve, if the T/R switch is ON.
j. Pulling a second Fire Pull Handle will reset everything except the generator,
provided the engine master switch has not been moved to OFF.6. One or both
bottles may be discharged into either engine.
7. Extinguisher bottle
a. Pressure gauge in each wheel well. Preflight check NOT required by crew.
b. Two disk indicators on fuselage are below left engine.
(1)
Yellow - One or both bottles discharged to the engine
(2)
Red - The fire bottle has been vented overboard due to overheat
8. Fire test - 5 lights will be illuminated and a bell will sound.
2 FIRE pull handle, 2 master caution, AFT FUS HOT
I. Thrust reversers
1. Provides deceleration during aborted T/O or during LDG. Decreases rollout by 24%.
2. Separate accumulator: precharged to 900 + 50 psi
3. Cockpit light indications (one for each T/R): Yellow ARM, red UNLOCK, blue
DEPLOY lights.
4. Switch positions
a. OFF: no power.
b. ON: power available to T/R if main gear down and locked and throttles are IDLE;
WEIGHT ON WHEELS NOT REQUIRED.
ENGINES
1-5


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