Ice And Rain

Question 1

When and Which anti ice system must be on for taxi?

Answer 1

If visible moisture or ground contamination present
&
OAT at or below 10c:
COWLS must be on

Question 2

When and which anti ice system must be on for takeoff?

Answer 2

If ground contamination or visible moisture
&
OAT at or below 10c: COWL on
OAT at or below 5c: WING & COWL on

*Visible moisture present below 400 AGL

Question 3

Which and when must the anti icing s yet them be on in flight:

Answer 3

ICE annunciation or

Visible moisture present and;
Temperature From TAT 10c to SAT -39c (included);
*Below 230 kts: COWL & WING on
*230 kts or more: COWL on

Question 4

Definition for ground contamination:

Answer 4

Runways, ramps or taxiways with surface snow, ice, slush or standing water

Question 5

Definition for visible moisture

Answer 5

Visible moisture or precipitation in any form (such as fog with visibility 1 mile or less, mist, rain, snow, sleet and ice crystals or clouds in flight)

Question 6

Do not hold in icing conditions with:

Answer 6

Slats/flaps extended

Question 7

Single engine taxi prohibited when:

Answer 7

Ramps or taxiways are contaminated with snow, slush or ice, or when snow or other freezing precipitation is present

Question 8

Tactile check of wing leading edge, forward upper surface and rear upper surface required when:

Answer 8

*OAT 10c or less, or
*Bull fuel temperature is 0c or less, or
*Atmospheric conditions have been conducive to frost formation.
* Ice/frost may continue to adhere even above 10c

Question 9

Supercooled Large Droplet (SLD) icing is present when:

Answer 9

Icing accretion to side windows

Question 10

When in SLD icing conditions:

Answer 10

Wing/Cowls on and get out