What was found
(CAN) ON ENGINE SHUTDOWN RAMP PERSONNEL NOTICED A MIST COMING FROM THE LT ENGINE. MAINTENANCE BROUGHT THE AIRPLANE INTO THE HANGAR AND STARTED TO TROUBLESHOOT THE PROBLEM. WITH THE ACFT FUEL BOOST PUMP SELECTED ON, A MIST OF FUEL WAS NOTICED COMING FROM A FUEL LINE, PN 3026779, COMING OFF THE FCU. THE LINE WAS REMOVED AND PRESSURE TESTED WITH SHOP AIR AND A CRACK WAS DETECTED AROUND ONE OF THE FLARES ON THE LINE. THE AIRPLANE WAS GROUNDED UNTIL A NEW LINE WAS INSTALLED.