What was found
AIRSPEED MISMATCH ON T/O ROLL ON F/O''S PFD, SWITCHED TO SYS NR 1. RUDDER SYS NR 1 & 2 FAULT RESET RUDDER SYS''S BUT RETURNED. PERF PITOT STATIC LEAK CK, BLEW OUT BOTH PITOT LINES, ALL CHECKS NORMAL. REMOVED AND REPLACED NR 2 ADC MM 34-11-34/4.