On very poor visibility, the pilot approaches under ILS procedure. Usually they are requested to call the TOWER, when visual with the runway, to receive the landing clearance. However, on ILS Cat 2 or 3, it happens quite close to the runway, then the pilots will not have enough time, to switch on the Tower´s frequency to receive the clearance. Then the Approach Control may say: "The tower clears you to land."
My questions are:
- Does the tower CLEAR the landing, or only inform the runway is clear?
- Is it the pilot´s decision to land or not?
- Where can I read this specific document or phraseology?