Initial review of 777 other airplane engine combinations has not revealed the same vulnerability to the identified unsafe condition.
Regarding the above quotation, Google is your friend, and finds that exact string at:
FR Doc E8-21138
Assuming this site to be legitimate (I think it is), it comes from the discussion portion of the Supplementary Information section for the AD being promulgated by the FAA in response to the incident which is the subject of this thread.