A Japan Airlines Dreamliner was forced to returned to Boston airport yesterday after a mechanical indicator alert came on.

A Japan Airlines spokeswoman said the aircraft, which was en route to Toyko, turned back to Logan International airport around five hours after taking off as ‘precautionary measure’.

 “As a standard precautionary measure due to a maintenance message indicator, JL007 bound for Tokyo-Narita is returning to Boston Logan for checks,” she said.

Shares in Boeing dipped by 1.7% following the incident.  Boeing’s 787 remains under investigation after a fire on board a parked 787 at Heathrow airport last week.

Japan Airlines only resumed its 787 operations in June, five months after a battery caught fire on board one of the aircraft in its fleet.