Jackie Mayo, a spokeswoman for Cleveland Hopkins airport, says the crew of the Heat's plane reported a wing "flap issue" early Thursday as the aircraft was on its approach. An alert was issued at the airport and two fire trucks were sent out to the runway, which is standard procedure.
Mayo says the plane landed safely at about 2:30 a.m. ET.
The Cavaliers play host to the Heat on Thursday night, five months after James angered the city's fans by announcing his departure for Miami as a free agent.
Extra security measures have been implemented for the game to prevent trouble and to protect James. The Heat did not reveal their travel plans, hotel location and pregame workout plans to the local media, which they normally do.
The Heat and the NBA have taken additional security measures to ensure the safety of James and the team this season.
Cavaliers spokesman Tad Carper told the Cleveland Plain Dealer that the team's secruity will be "remarkably similar" to the norm at Quicken Loans Arena, though he did admit that "it's fair to say we'll have more security in general."
"We're not trying to create a police state for this game," Carper said, according to the Plain Dealer. "We've gone through a very comprehensive process with the league security folks, the local authorities, the Cleveland Police Department, and we feel like we have a great plan in place to make sure we have a safe, law-abiding environment."
Information from The Associated Press and ESPN.com's Michael Wallace is included in this report.