What was found
L REV UNLOCK MSG IN FLT. EMERGENCY STOW INDICATION ONLY NO FLT TO INDICATE REV ACTUALLY OPEN. EN ROUTE TO ATL A/C DIVERTED TO CVG DUE TO MTC - EMERGENCY TRUCKS ON STANDBY AS A PRECAUTION. THIS SDR WILL REMAIN OPEN PENDING MAINTENANCE DETERMINATION OF AN APPROPRIATE CORRECTIVE ACTION. THRUST REVERSER SYSTEMS. REMOVED AND REPLACED THROTTLE LOCKOUT SWITCH IAW AMM 78-37-01, FOUND CONTACT BRACKET FOR LOCKOUT SWITCH AND STOW SWITCH LOOSE, RESECURED . OPS CHECK GOOD.