It appears the Airport simply wants the insurer to write a cheque without any supporting documents....not sure that they have not supplied some documentation but obviously not enough. It is the responsibility of the insured (Airport) to prove their loss and to prove that the loss is covered under the insurance contract. If the airport wants to do alterations to improve what was already there than that is going to and need to be paid outside of the insurance contract. If those two lines are being blurred could be the reason why there is the holdup. JMHO