As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NO RESPONSE WHEN PILOT THROTTLE BACK ON LEFT ENGINE. THE BALL HAD COME OUT OF THE JOINT ASSEMBLY AT THE THROTTLE BODY. RIGHT ENGINE THROTTLE BALL JOINT HAD BEEN REPLACED 13.1 HOURS PREVIOUS. SUMBITTER NOTES THAT THEY ARE FOLLOWING PIPER SL 747 (WEAR CHECK) AND REPLACING THE JOINT ASSY EVERY 1200 HOURS.