As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF IN CLIMB RIGHT ENGINE TORQUE INDICATION BEGAN TO FLUCTUATE PLUS OR MINUS 10 PERCENT. AIRCRAFT RETURNED TO SAT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT DISCREPANCY AND FOUND A DEFECTIVE TORQUE RING. REMOVED AND REPLACED TORQUE RING IN ACCORDANCE WITH THE GARRETT MAINTENANCE MANUAL. PERFORMED RUN UP AND LEAK CHECK. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.