As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5451 - UPON FLAP SELECTION TO 8 DEGREES A THUMPING WAS FELT. ABORTED APPROACH, DECLARED EMERGENCY, TOWER VERIFIED GEAR DOWN UPON SELECTION. LANDED WITHOUT INCIDENT. REPLACED MISSING SEALANT TO BELLY AND WING ROOT FAIRINGS. NO FURTHER DEFECTS.