As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE-OFF, UNABLE TO RAISE GEAR HANDLE. RAN CHECK LIST AND DETERMINED THAT AIRCRAFT FAILED TO GO INTO FLIGHT MODE (GROUND SHIFT IN GROUND MODE) - PULLED CIRCUIT BREAKERS AND DETERMINED THAT THE GROUND SHIFT WAS BAD. FOUND GROUND SHIFT MECHANISM PUSHROD DISCONNECTED. ATTACHED PUSHROD SHIFT MECHANISM IAW DC-9 MM 32-52-07-2-001.