JS1 Jet Sustainer Flight Manual Supplement - Issue 1
Date of issue: 31.03.2016
Accepted section
Page 3–17
3.3. Fire
3.3.1. Engine fire on the ground
An engine fire may occur following one or more failed start attempts.
In such a case unburned fuel inside the turbine may be ignited,
resulting in exhaust flames from a “wet start”. If an engine fire is
observed while the engine is running, the following action can be
taken:
1. Reduce throttle position to the IDLE setting.
2. Wait until all excess fuel inside the turbine is burnt.
3. If engine EGTs are within normal range, operation can
continue normally.
4. If EGTs seem to be too high, the engine should be shut down
by closing the fuel valve in the cockpit.
5. Do not retract the engine while hot or while any flames are
visible.
If an engine fire is observed with the engine not running, the following
action should be taken:
1. Close the fuel valve in the cockpit.
2. Move the Jet Control toggle switch to “EXT” position. Do not
retract the engine.
3. During the cooling cycle air will be forced through the turbine,
also forcing the flames to exit at the exhaust. It is important to
keep the air flowing through the turbine, either with the starter
motor or by external high pressure air.
