As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAP-SLAT ELEC STATUS ON GATE. SUPPLEMENTAL DATA UPDATE FOUND FLAP-SLAT ELE UNIT FAULTING ITSELF. REPLACED FSEU. UPON TESTING OF FLAPS, UP AND DOWN, FOUND LOUD GRINDING NOISE ON RH SIDE INBOARD TRANSMISSIONS AT FLAPS AREA. FOUND MISSING BOLT IN RH INBD FLAP ASSY AT INBD HINGE ASSY POINT, INSTALLED TEMPORARY BOLT OPS NORMAL, NO GRINDING NOTED.