As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT, CREW RELEASED THE FLIGHT CONTROL LOCK AND FOUND THE CONTROL COLUMN WOULD NOT FULLY TRAVEL TO NOSE DOWN POSITION. ON INSPECTION, MX FOUND THE LEFT ELEVATOR FORWARD RIB SKIN BETWEEN ELEVATOR STATIONS 65.5 AND 117.5 HAD CRACKED AND FAILED. RT ELEVATOR WAS UNAFFECTED.