What was found
CAPT'S AIR SPEED INDICATOR SHOWED -0- DURING T/O ROLL, ABORTED T/O AT 85 KIAS, WEIGHT 310,000 LBS, OAT 23' PA-37 FT, MAX BRAKE TEMP 250 DEGREES CELSIUS. REMOVED AND REPLACED ADC NR 1 IAW MM 34-11-20, LEAK TEST PERFORMED IAW 34-11-10, HI-LEVEL PITOT TEST PERFORMED.