As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3247 CREW REPORTED GUST LOCK JAMMED AFTER BEING RELEASED BEFORE TAKEOFF & DECLARED EMERGENCY. ALL UNLOCKED INDICATIONS WERE VERIFIED PRIOR TO TAKEOFF. THE ACFT WAS REMOVED FROM SERVICE. PERFORMED ELECTRO MECHANICAL GUST LOCK SYS OPERATION IAW AMM 27-71-00, OPERATION GOOD, UNABLE TO DUPLICATE.