What was found
REPEAT DISCREPANCY, NO AIRSPEED INDICATION ON FO PFD DURING INITIAL TAKEOFF ROLL. REJECTED THE TAKEOFF. INSPECTED F/O'S PITOT PROBE IAW AMM 34-11-15-06, IT APPEARS TO BE METALLIC DEBRIS IN THE PROBE. PROBE NIS. F/O PITOT PROBE CLOGGED. REMOVED AND REPLACED (40DA) F/O PITOT PROBE. PURGE, LEAK, AND OP CHECKS GOOD. ALL WORK DONE PER REF. A/C GOOD FOR SERVICE.