What was found
AIRCRAFT WAS GROUNDED: ABORTED TAKE-OFF AT 140 KNOTS ACCOUNT YAW TO THE LEFT. FLIGHT RETURNED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE INSPECTED THE AIRCRAFT, ACCOMPLISHED A SATISFACTORY ENGINE POWER ASSURANCE CHECK PER TASK CARD 71-95-01 AND FOUND BIOTH ENGINES TO BE WITHIN LIMITS. MAINTENANCE MESSAGE LGCIU1(5GA1) RIGHT SHOCKABSORB SIGNAL/BSCU(10GG) WAS NOTED. MAINTENANCE ACCOMPLISHED TSM 32-42-00-810-851-A AND REPLACED RIGHT LANDING GEAR EXTENSION SYSTEM 1 PROXIMITY SENSOR 20GA PER AMM 32-31-73. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.