Anti‐Ice, Rain Protection

Question 1

For flameout prevention from ice ingestion:

Answer 1

Engine ignition is automatically activated when the
Engine Anti‐ice switch is turned ON, provided the Engine
Start selector is in AUTO

Question 2

When does probe heat operate?

Answer 2

Anytime an engine is running, with the exception of the
TAT probe(s), which are heated in flight only

Question 3

How are the forward windows heated?

Answer 3

All flight deck windows are electrically heated

Question 4

Corrections to reduce Max EPR or N1 (767) limits when using wing anti‐ice are based
on switch or valve position?

Answer 4

(PW) Valve position, (RR & 767) Switch position

Question 5

Which aircraft displays a TAI bug on the N1 RPM display when engine anti‐ice is on
and only a single bleed source is available?

Answer 5

PW

Question 6

What is the condition of the left engine anti‐ice valve if the Left Engine Anti‐ice
switch is selected OFF and its VALVE light is on?

Answer 6

Signaled closed, and not closed

Question 7

What light illuminates and EICAS message(s) display(s) to indicate one window is not
being heated?

Answer 7

One INOP light illuminates and the L or R FWD WINDOW
or the L or R SIDE WINDOW EICAS advisory message
displays

Question 8

What is indicated with an Engine Anti‐ice VALVE light and L or R ENG ANTI‐ICE EICAS
message illuminated?

Answer 8

Engine anti‐ice valve disagrees with the switch position

Question 9

(PW) What condition displays the TAI bug on the N1 RPM display (not to be confused
with the thermal anti‐ice TAI indication above the display)?

Answer 9

When engine anti‐ice is on and only a single engine bleed

source is available

Question 10

(767) What does the ICE DET ON EICAS message indicate?

Answer 10

Ice detection sensor detects ice