What was found
DURING FLIGHT IN IMC ATC NOTED MODE 'C' INOPERATIVE. CONFIRMED PROBLEM, ALSO FOUND RT FUEL QUANTITY FUEL FLOW AND ITT INOPERATIVE. DURING DESCENT, PROBLEM DISAPPEARED. EXTENSIVE TROUBLESHOOTING REVEALED WIRE WHICH JUMPS TO THE BUS THAT CONTROLS THE INTERMITTENT SYSTEMS WAS LOOSE AT THE CIRCUIT BREAKER. FOUND THE THREADS IN THE TAB WHICH THE JUMPER ATTACHES TO WERE DAMAGED. THE SCREW WOULD 'BOTTOM OUT' AND GET TIGHT, BUT THE CONNECTOR WAS FREE TO ROTATE CAUSING INTERMITTENT CONDITION.