Cold weather OPS

Question 1

When do you need to run the engine at idle for 5min (NEO) ?

Answer 1

When the outside temp is below -29°C for the oil temp to reach 19°C for takeoff

Question 2

When should you delay the extension of the flaps/slats ?

Answer 2

After deice/anti-icing, the slats/flaps and flight controls can be moved, because they no longer have ice, UNLESS on slush-covered, or snow-covered taxiways: Flap selection should be delayed until reaching the holding point.

Question 3

What is the minimum oil temperature for takeoff ?

Answer 3

A319/A320 : -10°C
A320Neo/A321Neo: +19°C

Question 4

When is tankering not advised ?

Answer 4

when takeoff or landing on contaminated rwy is expected or slippery/icy rwy

Question 5

What should be the minimum approach speed in case of ice accretion ?

Answer 5

Config FULL VLS+5kts
Config 3 VLS+10kts

Question 6

When should you not retract the flaps/slats after landing

Answer 6

If the approach was made in icing conditions, or if the runway was contaminated with slush or snow, do not retract the flaps and slats until after engine shutdown and after the ground crew has confirmed that flaps and slats are clear of obstructing ice.

Question 7

When should the taxi in time be recorded in the techlog ?

Answer 7

When taxiing in icing condition and temp at or below 3°C.