As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN BRINGING POWER UP FOR THE REQUIRED METHOD A TAKEOFF THE AIRCRAFT PULLED SEVERELY TO THE LEFT WITH THE BRAKES APPLIED AFTER ABOVE EVENT AIRCRAFT REQUIRED EXCESSIVE LIGHT INPUT ON THE TILLER TO STEER STRAIGHT. REMOVED AND REPLACED NLG STEERING ACTUATOR IAW SAAB 340 AMM 32-50-25. OPERATION CHECK GOOD. LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.