What was found
DURING TAKEOFF ROLL, THERE WAS NO AIRSPEED INDICATED ON THE CAPTAIN'S AIRSPEED INDICATOR WHILE THE FIRST OFFICER'S CORRECTLY INDICATED 90KTS. TAKEOFF WAS ABORTED (293,000LBS, 90KTS, 8DEGC, NO THRUST REVERSER USED. FOUND PITOT LINE OFF OF NR 1 ADC. PERFORMED LOW LEVEL LEAK CHECK IAW A-300 M/M 34-11-10.