Boeing has not ordered restrictions on 787s powered by General Electric GEnx-1B engines one day after an "engine issue" occurred during pre-flight testing in North Charleston, South Carolina.
Boeing and General Electric are collaborating with investigators from the National Transportation Safety Board (NTSB), the airframer says.
Local reports indicate an engine caught fire on the runway. While Boeing is unaware of concerns about in-service engines, the company says it will take action if called upon.
More than 25 customers have ordered over 800 GEnx engines to power their 787s, with the Rolls-Royce Trent 1000 supplying the balance. The only in-service GEnx-1Bs are operated by Japan Airlines.