Cold Weather Operations

Question 1

Definition of Icing Conditions in flight:

• The _____ indicates less than or equal to ___ degrees Celsius
• _________ is encountered

Answer 1

TAT
10 degrees C
Visible Moisture

Question 2

Icing conditions no longer exist when the in-flight SAT is less than or equal to ______ degrees C.

Answer 2

-40 Degrees Celsius

Question 3

What is a cold soaked aircraft?

Answer 3

Aircraft has been parked in -30 degrees C or colder for more than 8 hours

Question 4

Cold Weather Preflight Inspection:
(SOPM CH 4)

When must a Cold Weather Preflight Inspection be done?

Answer 4

1. OAT is less than or equal to 5 degrees C
2. Atmospheric conditions conducive to icing exist
3. AC has remained overnight and may have been subject to contamination
4. A through flight and residual ice from the inbound leg may have accumulated
5. Wing fuel temperature is at or below 0 degrees C

Question 5

Cold Weather-Taxi (SOPM CH 4)

When should the COWL ANTI-ICE be turned on during Taxi?

Answer 5

1. OAT less than or equal to 10 degrees C, AND
   -Visible moisture is present
   -Visibility less than or equal to 1 mile, OR
   -When operating on surfaces where ice, snow, standing water or slush is present:
   ANTI-ICE COWL…………ON

Question 6

Cold Weather-Taxi (SOPM CH 4)

When should the Wing Anti-Ice be turned on when on Taxi on the CRJ 200?

Answer 6

1. OAT less than or equal to 5 degrees C, with or without visible moisture, and
2. The aircraft has not been anti-iced with Type II or IV fluid:
   
   • After second engine start and at least TWO minutes prior to takeoff

ANTI-ICE WING……..NORM
Check:
~ED-2: WING A/ICE ON advisory message displayed prior to takeoff

Question 7

Cold Weather-Takeoff (SOPM CH 4)

When should the cowl anti-ice go on for Takeoff?

Answer 7

1. OAT is less than or equal to 10 degrees C:
   
   • Visible moisture (Visibility less than or equal to 1 SM or any precipitation); or
   • The runway is contaminated

ANTI-ICE - COWL LH/RH………ON
Check:
-ED-2: COWL A / I ON advisory message displayed prior to takeoff

Question 8

Cold Weather-Takeoff ( SOPM CH 4)

When should the WING and COWL ANTI-ICE be turned on for takeoff?

Answer 8

1. OAT less than or equal to 5 degrees C:
   
   • Visible moisture in any form ( visibility less than or equal to 1 SM or any precipitation) ceiling less than 400ft AGL reported; or
   • RW is wet or contaminated

ANTI-ICE -WING……………ON
ANTI-ICE -COWL LH/RH…….ON
Check:
-ED-2: WING A / ICE ON advisory message displayed prior to T/O

Question 9

When Type II or IV ________ fluids have been applied, the _______ anti-ice system must be selected ______ just prior to takeoff.

Answer 9

Anti-icing
Wing
ON

Question 10

When should the COWL ANTI-ICE be turned on in flight? Wings?

Answer 10

Cowl: Less than or equal to 10 DEG C and visible moisture present

Wing: Below 230 kts AND Less than or equal to 10 DEG C and visible moisture present OR ICE caution illuminates

Question 11

ANTI-ICE Equipment Operation-In Flight (SOPM CH 4)

When should the WING ANTI-ICE be turned on in flight?

Answer 11

1. ICE is annunciation by the ice detection system, or

2. Flying in ICING CONDITIONS and the airspeed is LESS than 230 KIAS

Question 12

Definition of Icing Conditions on ground and for takeoff:
On _____ and for _______ when:
-The OAT is less than or equal to ___ degrees C, and
-__________, or
-Operating on contaminated ramps, taxiways, or runways

Answer 12

Ground/Takeoff
10 degrees C
Visible Moisture