Pilot’s Operating Handbook Section 3
EXTRA 500 Emergency Procedures
26. January 2011
3-69
3.5.p Flight into Icing Conditions
Note Flights into known or forecasted icing conditions are
prohibited.
1 WINDSHIELD HEAT FAIL r
This warning means that the windshield controller has detected
a fault when
WINDSH switch is switched ON. Proper heating
current draw is (intermittently) annunciated by the
WINDSHIELD ON g safe operation light.
WINDSH; OFF
2 STALL HEAT r
This warning means that the stall vane heating is not drawing
enough current to work properly. The cause can be
PITOT–R
switch is off, load bus is without electrical power or the aircraft
is on the ground.
Airspeed indicator ; Monitor
3 PILOT HEAT LEFT or RIGHT y
This caution means that the respective pitot heating device is
not drawing enough electrical current to function properly. The
cause can be the respective
L–PITOT–R switch is off, aircraft is
on the ground or the emergency bus or load bus respectively is
without electrical power.
Airspeed indicators; Cross-check
on a regular basis
4 STATIC HEAT LEFT or RIGHT y
This caution means that the respective static heating device is
not drawing enough electrical current to function properly. The
cause can be the respective
L–PITOT–R switch is off, aircraft is
on the ground or the emergency bus or load bus respectively is
without electrical power.
Altimeters; Cross-check
on a regular basis
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