Green Annunciators

Question 1

INBD WG DEICE

OUTBD WG DEICE

TAIL DEICE

Answer 1

Trigger: Pressure sensed in respective de-ice boots is > 12 PSI

Significance: Pressure in the respective de-ice boots is sufficient for de-icing

Note: Sensor only detects whether enough pressure is present for de-icing
and not actual boot inflation. It is possible to receive the correct annunciation
without boot inflation, always verify inflation visually.

Question 2

L AUTOFEATHER

R AUTOFEATHER

Answer 2

Trigger: Autofeather switch armed and power leavers advanced above 85-
90%

Significance: Autofeather system logic has enabled the autofeather capability

Note: The annunciator indication is duplicated for ease of viewing above the
top left of the torque gauges and illuminates “AFX”

Question 3

L IGNITION ON

R IGNITION ON

Answer 3

Trigger: Engine ignitor is powered

Significance: Engine Ignitor is powered

Note: during start/ignition or with auto-ignition armed and torque < 700 ft-
lbs

Question 4

L ENG ANTI-ICE

R ENG ANTI-ICE

Answer 4

Trigger: Engine anti-ice vane is fully extended

Significance: Engine anti-ice vane has reached its fully extended position

Question 5

L BK DE-ICE ON

R BK DE-ICE ON

Answer 5

Trigger: Brake de-ice bleed air valve is in the open position

Significance: Use of brake de-ice will lower aircraft performance and raise ITT

Note: The ITT will raise approx 18°C when selected on during flight and
torque will decrease slightly.

Question 6

MAN TIES CLOSE

Answer 6

Trigger: Generator tie switch has selected to manually closed

Significance: Load shedding will NOT automatically occur and/or battery is
supplying all the electrical power for the system

Note: Crew must be aware of discharge rate and power remaining (See
Emergency Procedures Checklist: Load Management)