What was found
HUF - DURING CRUISE, SHUT DOWN NR 4 ENGINE DUE TO FIRE WARNING INDICATION. FOUND THRUST REVERSER SEQUENCE VALVE LEAKING AND BLOWING HOT AIR ON THE FIRE DETECTION LOOP. REMOVED AND REPLACED SEQUENCE VALVE. OPERATIONAL CHECK GOOD. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HUF - DURING CRUISE, SHUT DOWN NR 4 ENGINE DUE TO FIRE WARNING INDICATION. FOUND THRUST REVERSER SEQUENCE VALVE LEAKING AND BLOWING HOT AIR ON THE FIRE DETECTION LOOP. REMOVED AND REPLACED SEQUENCE VALVE. OPERATIONAL CHECK GOOD. (M)