SAO PAULO (AP) — The lone runway at a busy Brazil airport was blocked by a damaged cargo plane Monday, forcing cancellation of 450 flights and creating a ripple effect of delays across the nation.

A plane from US-based Centurion Cargo blew a tire upon landing at the Campinas airport late Saturday. Special equipment is needed to move the massive jet off the runway at Brazil's 9th-busiest airport.

Adding to the mess is the check-in system at Tam Airlines, Brazil's biggest. It was down for hours Monday morning, causing more delays.

Brazil's airports are under scrutiny as the nation prepares to host the 2014 World Cup and 2016 Olympics. The nation has promised to make quick advances in airport capacity and efficiency.