What was found
FLT#1411, FLL-AUA. (AIRCRAFT PERFORMED AN AIR TURN BACK TO FLL) 'FELT AIRCRAFT VIBRATION CLIMBING THROUGH 10,000 FT. VIBRATION STARTS FASTER THAN 250KTS, & STOPS SLOWER THAN 250KTS. FLIGHT ATTENDANTS & CUSTOMERS FELT VIBRATION WORSE IN THE AFT PART OF PLANE; PERFORMED DVI OF FUSELAGE PANELS AND SEALS PER SM 53-35-00. NO FINDINGS. PERFORMED VIBRATION SURVEY AND LED TO ELEVATOR SURFACES AS POSSIBLE CAUSE. PERFORMED INSPECTION OF ELE. SERVO FOR OSCILLATIONS AND EXCESSIVE PLAY PER AMM 27-34-00. ALL CHECKS BETWEEN LIMITS. DFDR DOWNLOAD SHOE NO ABNORMALITIES. OK FOR SERVICE.'