Engine Failure In Flight; Landing Out; Engine Fire On Ground; Engine Fire In Flight - Pipistrel Sinus 503 Flight And Maintenance Manual

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Engine failure in flight

First ensure proper airspeed by reducing angle of attack, then start analysing terrain underneath and
choose in your opinion the most appropriate site for landing out.
WARNING!
The decision where to land when landing out is FINAL! DO NOT change your
mind even if you happen to come across a different, perhaps more appropriate landing site.
Provided the engine failed aloft, react as follows:
Make sure the master switch is in the ON position (key full right), magneto switches both set to ON
and both fuel valves OPEN.
Should the propeller not be spinning (motor blocked!), the engine is probably seriously damaged.
In this case DO NOT attempt to restart the engine. Instead begin with the landing out procedure
immediately.
Should the propeller be spinned by air current freely, fuel or electrical system is probably malfunc-
tioning. Verify on-board fuel quantity and make sure both fuel valves are open and magneto
switches set to ON. Restart the engine.

Landing out

1. Shut both fuel valves.
2. Master switch OFF (key in full left position).
3. Approach and land with extreme caution, maintaining proper airspeed.
4. After having landed abandon the aircraft immediately.
The landing out manoeuvre MUST be preformed with regard to all normal flight parameters.
Engine fire

Engine fire on ground

This phenomenon is very rare in the field of Ultralight aviation. However, coming across engine fire
on ground, react as follows:
1. Shut both fuel valves.
2. Come to a full-stop, engage starter and set throttle to full power (lever full forward).
3. Disconnect the battery from the circuit (pull battery disc. ring on the switch column)
4. Master switch OFF immediately after the engine has stopped.
5. Abandon the aircraft and start fire extinguishing.
WARNING!
After the fire has been extinguished DO NOT attempt to restart the engine.

Engine fire in flight

1. Shut both fuel valves and set magnetos switches to OFF.
2. Set full power (throttle lever in full forward position).
3. Disconnect the battery from the circuit (pull battery disc. ring on the switch column)
4. Close all windows and set all ventilation devices to OFF.
5. Perform side-slip (crab) manoeuvre in direction opposite the fire.
6. Perform emergency landing out procedure.
SINUS motorglider
Emergency procedures
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