Pilot Operating Handbook
Cavalon
SECTION 3
EMERGENCY PROCEDURES
AutoGyro_POH_Cavalon 915iS
Revision 1.0 – Issue Date 08.MAY.2019
3-11
If lit in flight, check fuel level. Turn on standby fuel pump, if fitted. If the light remains on, and
there is sufficient fuel, this could indicate a blocked fuel supply. Be prepared for an engine
stoppage and reduce power. Land as soon as practicable and have maintenance action
performed.
3.13.6 Pitot (amber / if installed)
This indication serves to indicate a failure of the pitot heat circuit, if pitot heat has been
activated via the Pitot switch.
3.13.7 Water Temperature Indication
This lamp illuminates RED when the coolant temp reaches 120 °C. If lit, reduce power. If
condition cannot be corrected, land as soon as practicable.
3.13.8 Water Level Indication (red)
The Water Level Indication warning light is triggered as soon as coolant water in the
expansion tank is below minimum level. If indication is lit, cross-check Water Level
Indication with Water Temperature Instrument or Cylinder Head Temperature Instrument,
monitor Water Temperature Instrument or Cylinder Head Temperature Instrument and
consider landing. Be prepared for engine failure.
3.13.9 Oil Pressure Indication (red)
Lighting up of the Oil Pressure Indication signals a problem within the lubrication system,
which is characterised by a drop of oil pressure to or below 0.8 bar. If Oil Pressure
Indication is lit cross-check with Oil Pressure Instrument, monitor Oil Pressure Instrument
and consider landing. Be prepared for engine failure.
3.13.10 Clutch (orange)
Continuous light
Indicates a slipping clutch during prerotation.
Reduce engine RPM to closer match the rotor speed, and be more gentle when increasing
power.
Blinking
Intended take-off run with low rotor RPM – danger of blade flapping
Reduce power immediately, and stop if take-off has started. Re-apply the pre-rotator and
increase rotor RPM first. If the correct take-off rotor RPM cannot be reached, abort take-off.
3.13.11 Engine Lane A or Lane B warnings
If a warning indicator flashes, it indicates an error with lower severity (Fault) that has been
detected by the internal testing procedures of the ECU. In this case the ECU will continue to
operate normally. There will be no transfer of control of the ignition and injection to the error-
free Lane.
If a warning indicator remains on permanently, it indicates that a fatal error with higher
severity (Failure) has been detected by the internal testing procedures of the ECU. In this
case, the ECU will continue to operate in an alternative control mode, which will transfer the