
A Japan Airlines 787 was en route from Boston to Tokyo when a maintenance indicator flashed early in the flight.
Pilots returned to Boston where they made a safe landing at 6:15 p.m. The problem is being reported as a maintenance issue.
Flightradar24 website shows that Japan Airlines flight 7 was over Hudson Bay in Canada when it turned around.

Transavia flight HV-163 made an emergency landing in Vienna, Austria, on May 13th.
JetBlue flight B6-385 had to return and make an emergency landing in Fort Lauderdale, Florida, on August 10th.