Supplementary Procedures

Question 0

Definition “severe Windshear”

Answer 0

A change of more than 15 kts in horizontal wind component or of 500 ft./m in vertical speed is an indication of severe windshear conditions.

Question 1

Definition “Icing Conditions”

Answer 1

Icing Conditions exist when:
The OAT on the ground, or TAT in flight is 10°C or below, and visible moisture in any form is present (such as clouds, fog with visibility of 1600 m or less, rain, snow, sleet or ice crystals).

Question 2

Cold Weather OPS
During prolonged ground operation in icing conditions incl. taxi and ground holding with OAT +3°C or less periodically increase thrust to a setting as high as practical…

757
76P
76G

Answer 2

757: minimum 60% N1 for 10 seconds at intervals no more than 60 minutes.
76P: minimum 50% N1 at intervals no greater than 15 minutes.
76G: minimum 60% N1 for 30 seconds at intervals no more than 30 minutes.