As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM KTOL TO KBNA UPLATCH CHECK POSITION OF GEAR HANDLE DURING CLIMBOUT THE (LANDING GEAR UNSAFE) LIGHT CAME ON. CYCLED GEAR DOWN AND BACK UP TWICE BEFORE GETTING A SATISFACTORY UPLATCH CHECK. AN INSPECTION IS ONGOING. AS INFORMATION BECOMES AVAILABLE IT WILL BE PROVIDED.