A series of jarring incursions early in the year received widespread attention. In one incident at Kennedy International Airport, in New York, a plane had to abort taking off because another had crossed dangerously close to it. In another episode, at Austin Bergstrom International Airport in Texas, a pilot had to abort landing because the runway was being used by another plane to take off.
In March, the F.A.A. held a safety summit to address the incursions and other safety concerns. It also issued a bulletin to airlines, airport operators and workers, calling on carriers to exercise caution in carrying out operations. The National Transportation Safety Board is holding an event on Tuesday to discuss incursions.
There have been about 550 runway incursions this year through April, up slightly from 530 during the same period last year, according to the F.A.A.
Background: The aviation system has had many problems.
The problem of runway incursions come as demand for air travel has risen as people move on from the pandemic and spend more money on travel and other services that they avoided during the past few years.