What was found
REJECTED T/O 5L IND DUE TO ZERO AIRSPEED INDICATION IN F/O INDICATOR TEMP 24 DEG, WT=420,000, AIRSPEED AT REJECT=100KTS, RNWY 57 (FULL LENGHT), BRAKE COOLING TIME=64 MINS, TIME OF REJECT=21:59Z. FOUND F/O'S PITOT TUBE OBSTRUCTED. CLEARED OBSTRUCTION AND PURGED F/O'S PITOT SYSTEM AND PERFORMED LOW LEVEL PITOT STATIC SYSTEM CHECK F/O'S AIRSPEED INDICATOR, OPS CHECKS NORMAL.