What was found
AIRFRAME BUFFET AFTER TAKEOFF. WORSE WITH INCREASE IN ALT AND SPEED FELT THROUGH CONTROLS FIRST THEN UP THROUGH SEAT. F/A FELT ALL THE WAY TO BACK OF PLANE. INSPECTED FUSELAGE AND WINGS INCLUDING FLT CONTROLS AND FLAPS AND ALSO EMPENNAGE. FOUND LT LWR STAB FAIRING GAPPED, SHIMMED FAIRING. PERFORMED TEST FLT PER SP 4080, NO DISCREPANCIES NOTED BY FLT CREW OR INSPECTOR DURING TEST FLT.