A spokesperson for the airport said Airservices Australia, which oversees air traffic control there, was managing reduced air traffic movements expected to impact flights network-wide and result in delays. Airservices Australia said it had enacted air traffic-flow management measures, including spacing out departures, due to roster constraints. Mr Beckett called on Airservices Australia to identify the root cause of the issue and detail plans to address it. "We need Airservices Australia to support their people and ensure they have enough human resources and other resources to ensure the towers are adequately staffed." Airservices Australia has previously said air traffic controllers are dedicated to performing a demanding role.