As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE AFTER GEAR RETRACTED BOTH MAIN LANDING GEAR DOORS REMAINED OPEN OPENED AND CLOSED MAIN GEAR DOORS IAW AMM 32-12-11/301. NO DEFECTS NOTED. TECH SUPPORT SUSPECTS DOORS SLOW TO CLOSE ON GEAR HANDLE OPERATION. FURTHER TROUBLESHOOTING REQUIRED.