Ground Emergency Procedures; Engine Fires; Electrical Fires - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
Maintenance Procedures. Fill the fuel tanks immediately after flight. If shelter is not
available, tie the aircraft down and install covers on all vents, openings, etc. as required.

GROUND EMERGENCY PROCEDURES

Emergency procedures must be accomplished as rapidly as possible, should an
emergency arise. It is suggested that steps pertaining to each emergency be committed
to memory in order to accelerate the procedure and minimize any possible damage.
The following Dry Motoring Run procedure is used to clear an engine at any time when
deemed necessary to remove internally trapped fuel and vapor or when there is evidence
of a fire within the engine. Air that passes through the engine serves to purge fuel, vapor,
or fire from the combustion sections, the gas generator turbine, the power turbine, and the
exhaust system.
A. Fuel Condition Lever - Cut Off
B. Ignition Switch - Off
C. Master Switch - On
D. Fuel Shutoff Valve - On
E. Fuel Auxiliary Pump Switch - On
F. This will provide lubrication for the engine-driven fuel pump.
G. Engine Starter Switch – On
If the fire persists, as indicated by sustained
high inter-turbine temperature, close the fuel
system shutoff valve and continue motoring.
F. Maintain the starter operation for the desired duration. The maximum starter
duration is 3 minutes.
G. Engine Starter Switch - Off
H. Fuel Auxiliary Pump Switch - Off
I. Fuel Shutoff Valve - Off
J. Master Switch - Off
K. Allow a 5-minute cooling period for the starter before going any further with the
starting operation.
Circuit breakers will automatically trip and stop the current flow to a shorted circuit.
However, as a safety precaution in the event of an electrical fire, turn the battery switches
to off. Use a fire extinguisher approved for electrical fires to extinguish the flame.
Effective: 05/05/04
AIRCRAFT MAINTENANCE MANUAL

ENGINE FIRES

*** WARNING ***

ELECTRICAL FIRES

2-5