As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING INSPECTION OF FLIGHT CONTROLS, A RUBBING NOISE WAS HEARD. INVESTIGATION FOUND THAT THE PITCH TUBE WAS WORN BY THE CASEY HEATER HOSE. (2.015 INCH GROOVES APPROX 3 INCHES LONG). THE TUBE WAS REPLACED AND POSTIONED CORRECTLY.