Firefighters helped passengers descend an emergency stairway, and they were bused to the terminal. John Abbate, a Wood Dale resident who was aboard, described a loud impact as the plane touched down. He said the landing felt unusually rough, though he said the incident would not deter him from flying again.

The FAA’s review comes amid a series of tire failures at O’Hare. Tuesday’s was the sixth reported this summer, according to information provided about the incidents. The cases are not necessarily connected, but aviation experts say possible causes and patterns warrant investigation.

Joe Schwieterman, a DePaul University transportation professor and aviation expert, characterized the frequency as unusual. He raised questions about whether landing patterns or runway debris could be contributing factors, while stressing that the circumstances need to be examined.

Radio communications between pilots and air traffic control on Tuesday raised the possibility of a problem with the aircraft’s brakes. Erik Baker, a former Navy safety director who now leads graduate studies at Lewis University, said a seized brake could prevent a wheel from turning and lead to a tire failure. That remains a possible explanation, not a confirmed cause.

American Airlines said the aircraft would be taken out of service for inspection. Baker said aircraft have multiple landing-gear tires that provide redundancy, and that airlines, airports and manufacturers are expected to take part in safety investigations.

The FAA’s findings could help determine whether Tuesday’s event was an isolated mechanical problem or whether broader factors at one of the nation’s busiest airports deserve attention.