Ice and Rain

Question 1

Question: Are there any restrictions for using the flaps in icing conditions

1. Use Of Flaps:

Answer 1

Answer:

1. If icing conditions exist or may exist during approach and landing, WAI must be selected ON and confirmed to be operating in the normal temperature range prior to landing gear or flap extension.
2. The use of flaps in icing conditions is restricted to takeoff, approach and landing only.
3. Holding in icing conditions is limited to flaps UP and landing gear UP only. Additionally, a minimum speed of 200 KCAS must be maintained when holding in icing conditions.

Question 2

Question: What do cyan wing anti-ice lines indicate on ECS/PRESS synoptic page or OHPTS?

Answer 2

Answer: Wing anti-ice temperature < 100°F.

Question 3

Question: What do green wing anti-ice lines indicate on ECS/PRESS synoptic page or OHPTS?

Answer 3

Answer: Normal temperature (100 to 180°F)

Question 4

Question: What do amber wing anti-ice lines indicate on ECS/PRESS synoptic page or OHPTS?

Answer 4

Answer:
Ground - Wing temperature is < 100°F after 2 minutes
Air - 4 minutes from the time it’s commanded to ON
or > 180°F

Question 5

Question: How many Minutes must Wing A/I be on before Take Off?

Answer 5

Answer: 2 Minutes If WAI is required for takeoff, ensure that it is selected On at least 2 minutes prior to setting takeoff power to ensure that rated thrust and wing temperature monitoring are available.

Question 6

Question: After deicing, what is the time limit for Wing A/I while on the ground?

Answer 6

Answer: 20 Minutes Accumulative

Question 7

Question: What is the Maximum Altitude with WAI ON under the following conditions:

Answer 7

1. MAX altitude with WAI ON? Answer: FL 410
2. MAX altitude with WAI ON (Single Bleed System)? Answer: FL 350
3. MAX altitude with WAI ON (Single WAI System) Answer: FL 350

Question 8

Question: During COLD weather operations how are Manual Ice shedding (Ground) procedures to be performed?

Answer 8

Answer: MUST be conducted to a minimum of 40% LP for a 10 second dwell at intervals of 60 minutes or less.

Question 9

Question: Where is Automatic Anti-ice inhibited?

Answer 9

Answer: Above FL350, also Wing Anti-ice is inhibited on the Ground