What was found
WHILE IN ROUTE, THE CREW OBSERVED RT OIL QUANTITY LOW LIGHT ILLUMINATED WITH NO SECONDARY INDICATIONS. AT THE SAME TIME THE ZONE 1 FIRE WARNING SOUNDED ON THE SAME ENGINE. THECREW PERFORMED AN EMERGENCY ENGINE SHUTDOWN AND RETURNED TO DEPARTURE. INSPECTION REVEALED A LOOSE CONNECTOR PLUG ON THE POWER SECTION OIL PRESSURE TRANSMITTER. THE CONNECTOR PLUG WAS RESECURED. FURTHER INSPECTION REVEALED A BROKEN EXHAUST PIPE CLAMP. THE CLAMP WAS REMOVED AND REPLACE AND THE AIRCRAFT WAS RETURNED TO SERVICE. (K)