As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR LEVER FAILED TO RELEASE AFTER TAKEOFF. AIRCRAFT STUCK IN GROUND FLIGHT MODE. REMOVED AND REPLACED R92. COOLING FAN WORKED BUT LEVER LATCH WOULD NOT PULL. REMOVED AND REPLACED LANDING GEAR ACCESSORY UNIT PER 32-09-122, OPERATIONAL CHECK NORMAL. LEVER LATCH PULLS FOR LANDING GEAR CONTROL.