As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN SELECTING FLAPS 45, AIRCRAFT HAS PROMINENT RIGHT ROLL CHARACTERISTICS THAT NEEDS ALMOST 1/2 OF THE LT AILERON TRIM TO NEUTRALIZE. FLT 4689 SANDED RT OTBD FLAP TEFLON STRIP LE TO A SMOOTH TRANSITION TO THE ADJACENT PAINT SURFACE IAW AMM.