What was found
AT FL400 IN CRUISE A LOUD THUMP WAS HEARD AND FELT IN THE NOSE AREA. ITEM IS UNDER INVESTIGATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT FL400 IN CRUISE A LOUD THUMP WAS HEARD AND FELT IN THE NOSE AREA. ITEM IS UNDER INVESTIGATION.