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CAUTION: FIRE EXTINGUISHER SHOULD NOT BE USED FOR
ENGINE OVERHEAT WARNING ALONE. IF SUBSEQUENT FIRE
WARNING RESULTS, INITIATE ENGINE FIRE PROCEDURE. AN
ENGINE MUST NOT BE RESTARTED AFTER AN OVERHEAT
WARNING. CLOSELY OBSERVE APPROPRIATE ENGINE FIRE
WARNING LIGHT.
NOTE: If HP fuel cock was closed, but visual, aural, or TGT / RPM
checks indicate a condition that could lead to further damage, the FIRE
handle should be pulled.
END
Pylon Hot AFM 4-21-20
A PYLON HOT message indicates a pylon temperature which may
result in damage to the pylon. Accomplish the following checklist:
1. Appropriate Bleed Air Switch.................................................... OFF
2. Isolation Valve .....................................................CHECK CLOSED
3. Altitude................................DESCEND TO 41,000 FT OR BELOW
If message persists or returns, shut down respective engine and
land as soon as possible.
END
Quick Reference Handbook
ABNORMAL / EMERGENCY PROCEDURES REVISION 7
Page ED - 10 May 30/02
Aft Equipment Hot AFM 4-21-30
The AFT EQUIPMENT HOT message indicates high temperatures
exist in the tail compartment which may be caused by a ruptured
pneumatic duct or fire.
1. Faulty Side ...................................................................... IDENTIFY
NOTE: High TGT, high fuel flow, low EPR, or abnormal (low) bleed
pressure may indicate faulty side.
2. Appropriate Bleed Air Switch ....................................................OFF
3. Isolation Valve..................................................... CHECK CLOSED
4. Altitude ...............................DESCEND TO 41,000 FT OR BELOW
If message persists or returns:
5. Emergency Descent................................................... COMMENCE
Below 15,000 ft. MSL:
6. Passenger Oxygen Masks .......................DEPLOY, IF REQUIRED
7. Opposite Bleed Air Switch.........................................................OFF
NOTE: This will result in loss of cabin pressurization.
8. If message persists, land airplane as soon as possible.
END
Converter Overheat AFM 4-21-40
Illumination of "L or R CONV HOT" amber caution message with
associated tone:
1. ELECTRIC MASTER LEFT or RIGHT POWER.......................OFF
If message extinguishes:
2. ELECTRIC MASTER LEFT or RIGHT POWER........................ ON
NOTE: Converter operation should be monitored for remainder of
flight. At any sign of unusual operation or heavy load, turn
ELECTRIC MASTER LEFT or RIGHT PWR - OFF.
Continued on next page →
Quick Reference Handbook
REVISION 7 ABNORMAL / EMERGENCY PROCEDURES
May 30/02 Page ED - 11
Converter Overheat, ctd… AFM 4-21-40
NOTE: The light will remain ON until the temperature of the converter is
reduced. If overheat condition recurs, turn the overheated converter OFF
for remainder of flight and perform Alternator / Converter Failure –
Single, page EA-7.
NOTE: If below 15,000 ft., it is recommended that the APU be started as
a source of supplemental electrical power. See the Avionics / Electrics /
APU Index, page EA-1, for the appropriate APU Inflight Operation
procedure.
END
Alternator Overheat AFM 4-21-50
Illumination of "L or R ALT HOT" amber caution message with
associated tone:
1. ELECTRIC MASTER LEFT or RIGHT POWER ...................... OFF
If the message extinguishes and was not accompanied by engine
vibration or unusual EVM indications:
2. ELECTRIC MASTER LEFT or RIGHT POWER ........................ON
Monitor alternator operation for remainder of flight. If indications
are erratic or HOT message re-illuminates, select appropriate
ELECTRIC MASTER switch to OFF.
NOTE: If below 15,000 ft., it is recommended that the APU be started as
a source of supplemental electrical power. See the Avionics / Electrics /
APU Index, page EA-1, for the appropriate APU Inflight Operation -
Alternate Electrical Source procedure.
END
Under Floor Overheat AFM 3-21-60
1. If wing anti-ice is ON, select left wing OFF.
2. Wait two (2) minutes.
3. If message persists, select right wing OFF.
4. If message persists, depart icing conditions.
Continued on next page →
Quick Reference Handbook
ABNORMAL / EMERGENCY PROCEDURES REVISION 7
Page ED - 12 May 30/02
Under Floor Overheat, ctd… AFM 3-21-60
5. Verify isolation valve is closed.
6. Select left bleed OFF.
7. If message persists, select left bleed ON and right bleed OFF.
8. If message persists, check floor board physically for temperature.
9. If cool, no action.
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湾流4快速检查单QRH GULFSTREAM IV QUICK REFERENCE HANDBOOK 3(37)
