As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INBOUND TEST FLIGHT FOR C-CHECK MANUAL GEAR EXTENSION, UNABLE TO EXTEND RIGHT MAIN GEAR. PERFORMED SPECIAL PROCEDURES, RIGHT MAIN DOOR DAMAGE NOTED ON LANDING. AIRCRAFT WAS JACKED IN HANGER AND TRIED TO DUPLICATE PROBLEM. UNABLE TO DUPLICATE PROBLEM. THIS AREA WILL BE LOOKED AT IN FURTHER DETAIL DURING C CHECK. AIRCRAFT INDUCTED INTO C CHECK THIS DATE.