As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM BTR, CREW EXPERIENCED CONTROL YOKE VIBRATION AND MADE AN UNSCHEDULED LANDING AT AIRPORT OF ORIGIN. FOUND FAILED BEARING ON THE STANDBY PITCH TRIM ROD-END AT THE LEFT ELEVATOR TRIM TAB HORN. ELEVATOR TRIM TAB WAS REPLACED TO EXPIDITE REPAIRS. AIRCRAFT WAS TEST FLOWN AND RETURNED TO SERVICE. (M)