I hate to correct BOEING777X, but the 777-300ER/GE90-115B went the first 3 years of operation without an IFSD - which was outstanding, but now I have counted 5 (five) IFSD in the last 5 months. I guess the honeymoon is over!
Difficult to see what the primary cause of this failure might be, so many types failures could cause this sort of damage.
I guess the failure must have happened in cruise as well, which is unusual.
