Britain’s Heathrow airport was shut down on Friday after a Boeing 787 Dreamliner caught fire on the runway.
The airport was later reopened and flights resumed.
It’s the latest incident to hit Boeing, which earlier this year was forced to ground its entire fleet of Dreamliners for three months after battery fires.
It’s currently not clear whether this fire, on an Ethiopian Airlines plane, was also due to the batteries.
But the news went straight to the markets, seeing shares in Boeing fall by up to 7 percent.
The European Aviation Safety Agency says it’s too early to say whether Boeing’s 787 Dreamliner fleet would need to be grounded again following the latest fire.