Alternate Requirements

Question 1

When is a takeoff alternate required?

Answer 1

Weather conditions at the departure airport are below landing minimums.

Question 2

The takeoff alternate must be located within

Answer 2

400 NM (all fleets) from the departure airport.

Question 3

When is a destination alternate required (FAR)?

Answer 3

1. 1 hr before and 1 hr after estimated time of arrival at destination airport
2. Ceiling will be less than 2000 ft
3. Visibility will be less than 3 miles

Question 4

What is the 1-1-2 alternate rule

Answer 4

1. 1 hr before and 1 hr after the ETA at the destination airport
2. Ceiling will be less than 1000’
3. Visibility will be less than 2 miles

Question 5

When is United authorized to use the 1-1-2 rule?

Answer 5

1. Destination must have suitable CAT II or CAT III approach that is available for use
2. Aircraft must be CAT II or CAT III capable
3. May not be used with Dual Alternates
4. Flight plan will show 1-1-2 RULE in lieu of an alternate name.