What was found
"RTO" DISCONTINUED TAKEOFF DUE TO UN - RELIABLE AIRSPEED ON F/O AIRSPEED INDICATOR. DISCONTINUED ABOUT 100 KTS, MAX BRAKE TEMP 575*. BRAKE TEMP WITHIN LIMITS PER AMM 05-51-16-200-801-A. ACCOMPLISHED TASK CARDS 3411-7002 & 3411-7003-HAL. TSD & DEBRIS FLUSHED FROM F/O PITOT TUBE FORWARDED TO ENGINEERING. PERFORMED TSM TASK 34-10-00-810-995-A. ADR & IR SYSTEM TESTS PASSED. AIRSPEED BETWEEN ADR 1, 2, & 3 WITHIN TOLERANCE. F/O PITOT LEAK CHECK GOOD PER AMM 34-11-00-790-801-A. AIRCRAFT OK FOR SERVICE.