Icing Conditions Ops

Question 1

On ground, the TO DATASET MENU on the MCDU must be set to __ when:

Answer 1

Must be selected to ENG when OAT is between 5-10C and:

1) possibility of encountering visible moisture up to 1700 ft AFE
2) when on taxiways, or runways, where surface snow, Ice, slush may be ingested in engines/probes

Question 2

On ground, the TO DATASET MENU on the MCDU must be selected to ALL when:

Answer 2

Must be selected to ALL when OAT is 5C and below and:

1) possibility of encountering visible moisture up to 1700 ft AFE
2) operating on taxiways or runways where surface snow, ice may be ingested in engines

Question 3

Cold weather preflight inspection

Answer 3

1) OAT IS 5C or less
2) wing fuel temp is 0C or less
3) atmospheric conditions conducive for icing
4) residual ice from inbound flight
5) remained overnight and may have frozen contaminants
6) cold soak is suspected in fuel tank area