FlightPathOBN:
54A?
what is that approved for?
I am an ops guy and design what works, not what any formula based criteria conjures up.
It is approved and required for U.S. RNAV IAPs other than RNP AR.
I am sorry, I thought you were a procedures designer.
No wonder you have issues with FAA approvals since you view their current non-RNP-AR criteria order with apparent contempt.