tai on above 10 degrees

[the_nanard 2]

hello,I often have this message: "tai on above 10 degrees" on the FMC and don't know what it means!i've searched on keewords on the manual without success! can somebody help me with this? thanksBernard

[steve inwood 67]

I'm not totally sure i get that aswell sometimes, but i think it maybe something to do with a setting in the CDU on temperature

[the_nanard 2]

i think on somthing like this to!

[Spook 96]

A pure quess, but could it be : True Airspeed Indicated above 10° pitch up? ( rather than ground speed ) A total guess though.

[ravery 0]

Engine anti-ice selected on above 10 degrees C. Warning as it can damage the system. Richard Avery

[steve inwood 67]

Ahhh yeah sound pretty good thank you i will now have alook myself love that we all help each other out.

[Guest dlrk]

TAI stands for Thermal Anti Ice, referring to the engine anti ice. That message indicates that engine anti-ice is inappropriately on above 10 degrees Celsius.

[ravery 0]

Just to add, the temperature is total air temperature (TAT) and not static Richard Avery

[the_nanard 2]

great!thanks for the answer!!regards,Bernard