What was found
(CAN) CREW REPORTED DURING TAKEOFF ROLL, A ENGINE 1 FIRE WARNING AND PERFORMED AN ABORTED TAKEOFF. AFTER RETURN AT STAND A FIRE SYS TEST SHOWED A CONSTANT FIRE LOOP FAILURE WITH NR 1 ENGINE FIRE DETECTOR FAILURE ZONE 1. BASED ON CREW INFORMATION IT SEEMS THAT THE EXTERNAL MOUNTED FIRE LOOP DETECTOR HAS FAILED. TROUBLESHOOTING ONGOING. ENGINE MFG IS FULLY COMMITTED TO ADDRESS THIS ISSUE PROACTIVELY AND WE WILL KEEP OPERATORS INFORMED OF OUR PROGRESS.