Ice & Rain Protection ( PH 6.x.x)

Wing Anti-ice (PH 6.1.2) - Wing anti-ice heats the three outer wing slat panels on each wing.

Wing A-I is available for single-engine (if Engine Fire pb not pushed) by using pack off and crossbleed open as per PH 21 After ENG 1(2) SHUT DOWN.

Wing A-I valves close automatically:

Ø On touchdown

Ø Leak detected

Ø Electrical power lost

Wing A-I is not permitted on ground or above TAT 10° C (PH 2.6.2)

APU bleed is NOT permitted for Wing anti-ice. (PH 2.14.9)

Note: Wing A-I test opens valves for 30 sec. on ground.

In normal use select Wing Anti-Ice (PH 3a.2):

Ø On after thrust reduction on take-off

Ø Off at FAF during approach

Engine Anti-ice (PH 6.1.3) – Engine A-I ducting is independent of wing A-I. Engine A-I valves will open automatically on loss of electrical power. They close with air pressure available. Engine limits are automatically reset when Engine A-I selected and continuous ignition is automatically turned on for that engine as well.

Probe and Mast Heat / Window Heat / Rain Removal (PH 6.1.4/5) -

All heat is turned on at low power on ground after the first engine start. In flight all heat automatically goes to High. Can turn on manually on ground before engine start by pressing pb to ON. Deselect to Auto after second engine start.

Note: when on ground a windshield (or window) heat fault may be given due to heating by the sun. Cool the cockpit (or stow shades) and reset the WHC circuit breaker.

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