As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE PYLON AFT OUTBOARD SIDE PANEL ASSEMBLY IS MISSING PANEL NUMBER 446AL. THE PANEL POSSIBLY DEPARTED DURING OPERATION OF THE AIRCRAFT. THE AIRPLANE WAS REMOVED FROM SERVICE (GROUNDED) AND A SERVICEABLE PANEL 446AL WAS INSTALLED. THE CAUSE OF THE MISSING PANEL IS UNKNOWN.