What was found
AT CRUISE FLIGHT DURING NIGHT VISION GOGGLE TRAINING THERE WAS AN ORDER OF SMOKE IN THE FLIGHT DECK. THE COPILOTS SIDE OF THE OVERHEAD PANEL WAS HOT TO THE TOUCH IN THE VICINITY OF THE LIGHT SWITCHES & RHEOSTATS. FLIGHT DECK LIGHTING WAS EXTINGUISHED & THE OVERHEAD PANEL DECREASED IN TEMPERATURE. THE DECISION WAS MADE TO RETURN TO AIRPORT & A NORMAL LANDING WAS ACCOMPLISHED WITHOUT FURTHER INCIDENT. REPAIRED POST LIGHT ON MONITOR PANEL, COPILOT SIDE IAW DWG C212-289-012.