As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* CORROSION DETECTED ON (BOLT HEADS) ON L/H OTBD FLAP, (INBD) HINGE BOX, (FWD) SUPPORT FITTING (WING PLANK SIDE), ATTACHING HARDWARE (MARKED). (C-CHECK) RO 2/5/2021 - INSTALLED 6 NEW BOLTS AND ATTACHING HARDWARE ON TO FLAP HINGE BOX SUPPORT FITTING AT WS178 REF. CRJ-700 AMM 57-54-02-400-810 (A01) STEPS 4.A.(11) TO END. / TUC8498 DUE:31-AUG-21 / LEAK CHECK GOOD. NO DEFECTS NOTED.