Originally Posted by
Apate
I don't want to shout, but the event would NOT have been caused by the loss of 12% of the oil. The oil loss will be a consequence.
My money is on either a mechanical issue in the #1 input module, or a failure of the oil scavange from the #1 input module which then led to "churning". It was overheating of the input module and then partial failure of mating seals between the input module and main module that resulted in some loss of oil.
Of course, I could be wrong
I'm struggling to remember where and when but hasnt this churning issue happened before and had a very similar situation.