As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRFRAME VIBRATES NOTICED DURING CLIMBOUT MAKING TURNS TO THE LEFT AND RIGHT. CHECKED ALL FLT CONTROLS VISUALLY AND OPERATIONALLY, CHECKED FLAP ROLLER CLEARANCE. FOUND MISSING UPPER SKIN ON RT MIDFLAP TRAILING EDGE 20 X 3. INSTALLED INTERM REPAIR PER NR 98DHL1.21RO-1 ENGINEERING DATA.