As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CO-PILOT YOKE IS BINDING & MAKING A THUMPING NOISE THAT CAN ALSO BE FELT THROUGH THE FLIGHT DECK FLOOR DURING AILERON CHECK. RE-TORQUED RETAINING NUTS, REPAIRED BACKLASH, REPAIRED BINDING CONDITION, ELIMINATED SNAPPING AND CLICKING NOISE IN THE AILERON CONTROL WHEEL IAW PA 27-066D.