What was found
RDU (FL 723) ON TAKEOFF, A LOUD HIGH PITCHED NOISE WAS HEARD FROM FORWARD ENTRY DOOR. THE CREW ELECTED TO RETURN TO FIELD. (RDU). THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RDU (FL 723) ON TAKEOFF, A LOUD HIGH PITCHED NOISE WAS HEARD FROM FORWARD ENTRY DOOR. THE CREW ELECTED TO RETURN TO FIELD. (RDU). THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.