What was found
FIRE DETECT FAIL L AMBER CAS: FIRE DETECT FAIL AMBER CAS ILLUMINATED FOR ABOUT 10 SECONDS UPON DESCENT INTO COLUMBUS.// SIGN OFF // UPON INITIAL INSPECTION OF LH ENGINE FIRE LOOP CANNON PLUG TO NOT BE FULLY TIGHTENED DOWN. SUSPECT THE LOOSE CANNON PLUG COUPLED WITH ENGINE VIBRATION WAS CAUSED OF CAS MESSAGE. TIGHTENED CANNON PLUG DOWN & INSPECTED ROUTING OF FIRE LOOP THEN PERFORMED GTC FIRE DETECTION TEST WITH NO FURTHER DEFECTS NOTED. REF CE-680A MM 26-10-00 FOR WORK PERFORMED.