Which Grant Assurance requires reporting of airline request denials at large airports?

The requirement to report airline request denials at large airports is outlined in Grant Assurance #39. This assurance is significant because it emphasizes the need for transparency and accountability in the airport's operations. By ensuring that denials of requests made by airlines are documented and reported, Grant Assurance #39 aims to maintain fair and equitable access to airport facilities, which is essential for fostering competition and ensuring that all airlines have the opportunity to serve the market.

Additionally, maintaining accurate records of such denials supports regulatory oversight and can help identify potential issues affecting airlines' operational decisions. This kind of reporting is crucial at large airports, where the complexities of operations and high volume of traffic can lead to various requests from airlines regarding slots, facilities, and services. Thus, adherence to this Grant Assurance helps ensure compliance with federal guidelines and promotes a fair and open environment within the aviation industry.