As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 700 - LAS-PHX - ON TAKEOFF, AIRCRAFT ENCOUNTERED WAKE TURBULENCE AND DEVELOPED VERY STRONG VIBRATIONS WITH FLAPS EXTENDED. AIRCRAFT RETURNED TO LAS WITHOUT FURTHER INCIDENT. MX INSPECTED FLIGHT CONTROLS AND FOUND THE RT OUTBOARD AFT FLAP SEQUENCING ROD JAM NUT LOOSE. MX TIGHTENED AND SAFETIED NUT. AIRCRAFT RELEASED FOR FURTHER SERVICE. (W)