As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, PILOT REPORTED NO THROTTLE CONTROL TO R/H ENGINE. REMOVED COWLING, INSPECTED THROTTLE ARM AND FOUND SPLINES WORN BEYOND SERVICE. CONTINENTAL MOTORS CRITICAL SERVICE BULLETIN CSB08-03C ADDRESSES THIS ISSUE. THIS ENGINE AND COMPONENTS ARE ONLY 233.1TT, AND HAS THE STAINLESS STEEL ARM INSTALLED.