What was found
FLT 378 - FLL-LGA - DIVERTED TO TPA, LOST CAPTAINS INSTRUMENTS, DATA, AUTO THRUST, ALTITUDE. F/O LOST ALTITUDE IN FLT. ACCOMPLISHED TSM 34-13-00-810-998-A. FUNCTIONAL TEST OF THE ALTITUDE AND AIRSPEED DATA SHOWED COMPARISON OF CAPT AND F/P DATA THE SAME, LEAK CHECK OF THE MAIN AIR DATA SYSTEM WITHIN LIMITS. REPLACED PITOT TUBE 9DA1 IAW AMM 34-11-15 AND ADM 19FP5 AND ADM FP4 IAW AMM 34-11-17-04 PER TSM 34-13-00-810-938, ALL TESTED GOOD. OK FOR SERVICE.