As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MOMENTARY CONTROL FLUTTER IN FLIGHT. UPON LANDING AN INSPECTION REVEALED THE MYLAR STRIP WHICH IS TAPED TO THE UPPER SKIN AND EXTENDS OVER THE ELEVATOR CONTROL SURFACE WAS MISSING. THE UPPER SKIN LAMINATE DIRECTLY OVER THE TWO CENTRE HINGES FOR THE ELEVATOR HAD DELAMINATED FROM HINGE TAB.