As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, PILOT FELT A BUMP IN THE CONTROL COLUMN. CONTROL COLUMN MOVED UNCOMMANDED FORWARD AND AFT. POWER REDUCTION RESULTED IN NORMAL FLIGHT CHARACTERISTICS. AFTER NORMAL LANDING FOUND LEFT ELEVATOR UPPER SURFACE FABRIC TORN OFF. DURING INVESTIGATION FOUND A 5 INCH SECTION WHERE GLUE WAS NOT PRESENT. POSSIBLE GLUE WAS WEAK AT THIS POINT.