What was found
DURING TAKEOFF AND CRUISE, THE FUEL BOX VALVE MAKES AN UNUSUAL BUZZING NOISE WHICH CAN BE FELT IN THE CABIN. SERVICE AD FSA 900/28-00/01 ADDRESSES THIS ISSUE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAKEOFF AND CRUISE, THE FUEL BOX VALVE MAKES AN UNUSUAL BUZZING NOISE WHICH CAN BE FELT IN THE CABIN. SERVICE AD FSA 900/28-00/01 ADDRESSES THIS ISSUE.