What was found
UPON SHUT DOWN OF ENGINES, CREW EXPERIENCED SMOKE IN CLOSET AFT OF PILOT'S SEAT. SMOKE STOPPED AFTER BATTERIES WERE SHUT OFF. UPON INSPECTION, FOUND THE COMPOSITE BULKHEAD, JUST FORWARD OF M.E.D., WAS BURNED AT ATTACH BRACKET FOR CURTAIN TRACK. AFTER LOWERING HEADLINERS, FOUND ONE OF THE SCREWS SEVERING CURTAIN TRACK CHAFED THROUGH FEEDER CABLE. CURRENT TRAVELED THROUGH THE SCREW, THROUGH CURTAIN TRACK, THROUGH ATTACH BRACKET, AND SHORTED IN THE BULKHEAD. CURTAIN TRACK ATTACH SCREWS WERE TOO LONG. (X)