As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED MAST MOMENT EXCEEDANCE ABOVE 90% WHILE IN LEVEL FLIGHT AND STEADY SPEED. REPORTED MM MONITORING SYSTEM JUMPED BETWEEN VECTORIAL AND LINEAR WHILE IN FLIGHT ACCOMPANIED WITH A GONG. REMOVED AND REPLACED SENSOR SIGNAL TRANSMITTING UNIT IAW AMM 63-42-00, 4-2; MOC OK.