atr 42 landing calls

[khurram butt]

My question for the atr 42 drivers. The training manual instructs for 80, 50, and 20 feet calls to me made on landing. 50, and 20 feet, I can guess but my question is that what is the significance of the 80 feet call.

[khurram butt]

sorry guys got the answer , had to go through the Cat 2 procedures, which we are not authorized to make.