Airlines are charged user fees for flying through airspace controlled by Aviation Navigation Service Providers (ANSP) for cost recovery

摘要

Per Flight Fee Structures 1. Distance based 1.1 Distance from entry to exit of controlled air space 1.2 Calculated based on planned flight paths 2. Chargeable Service Units (CSU) 2.1 Combination of distance and weight. ANSP Fee Collection and Payments 1. Invoice airlines directly and airlines pay directly 2. Invoice airline, but process through IATA Enhancement & Financing (E&F) Clearing House 3. Airlines audit for fight duplications and flight cancellations, but cannot audit for actual flight path 4. Disputes are cumbersome.