What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT DECK DOOR IS STUCK CLOSED FLIGHT CREW COULD NOT OPEN INFLIGHT WITH OR WITHOUT ELECTRICAL POWER ON THE DOOR. FLIGHT CREW TRIED OPENING IT FROM BOTH SIDES( IN AND OUTSIDE FLIGHT DECK). MAINTENANCE FOUND PANEL ABOVE THE FLIGHT DECK DOOR LOOSE AND SHIFTED DOWNWARD. MAINTENANCE REPOISITIONED THE PANEL AND TIGHTENED HARDWARE AS REQUIRED. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.