5. If the Security is decreased pursuant to Article 3 above, IATA shall return the balance of the Security (or otherwise assist Airline in amending the amount of Security, such as by amending an active bank guarantee document) as soon as is reasonably possible following such decision. No amount shall be returned to Airline, however, until the satisfaction in full of any outstanding and past due amounts owed by Airline to IATA which are subject to be covered by the Security pursuant to the terms of this Agreement.