What was found
F/O'S AIRSPEED INDICATOR WAS STICKING AT TAKEOFF. AIRCRAFT ABORTED TAKEOFF AT APPROXIMATELY 80 KNOTS AND RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE F/O'S AIRSPEED INDICATOR. VENDOR DID NOT CONFIRM FAULT. UNIT WAS OVERHAULED AND SERVICE BULLETIN 2083-34-13 REV.4 AND MODIFICATION "L" PER S.B. 2083-34-15 WERE INCORPORATED. IN ADDITION C7 AND C9 THROUGH C11 WERE REPLACED ON THE POWER SUPPLY. UNIT PASSED FUNCTIONAL TESTS. ALL WORK AND TESTS WERE PERFORMED IAW CMM 34-12-02 REV. 1.