As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASYMMETRIC ROLL NOTED IN FLIGHT WHEN FLAPS SELECTED TO 45 DEGREE. PAINT RIDGES NOTICED ON TOP OF FLAP LE. FLT#5553 INSPECTED ALL FLIGHT CONTROLS & FLAPS FOR ANY DEFECTS, NO DEFECTS NOTED. RAN ALL FLIGHT CONTROLS TO FULL TRAVELS & RAN FLAPS FROM 0 DEGREE TO 45 DEGREE SEVERAL TIMES, NO DEFECTS NOTED. OPERATIONS CHECKED GOOD. PRC PAINT RIDGES ARE NORMAL PART OF FLAP JOINT LE, NO DEFECTS.