As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ATTEMPTING TO ADJUST THROTTLE WARNING HORN, SOME MAJOR INCONSISTENT SETTINGS WOULD OCCUR. INVESTIGATION REVEALED A DEFECTIVE OR FAILED SWAGE JOINT WHERE FLEXIBLE CABLE TRANSITIONS AND CONNECTS AT AFT HOUSING ASSEMBLY. DEFECT LOCATED ONLY INCHES FORWARD OF WARNING HORN MICROSWITCH ATTACH. OPERATING THROTTLE WOULD MOVE HOUSING IN AND OUT INSTEAD OF CONTROLLING ENGINE.