As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AIRCRAFT PULLS TO THE LEFT ON TAXI AND TAKEOFF. REQUIRES RIGHT TILLER AND RIGHT RUDDER. WITH RUDDER TRIM SET AT R 4.5 AIRCRAFT AXIS STRAIGHT. MAINTENANCE REMOVED AND REPLACED NOSE STEERING SERVO VALVE AND SERVO CONTROL UNIT AND BOTH 3GC AND 4GC NWS FEEDBACK SENSORS IAW AMM 32-51-51 AND AMM 32-51-19. OPS/TAXI CHECK GOOD. (SEE SDR # AALA201909309003, AALA201909309034)