Leaking Oil
Hi Pursuit,
There is a cap at the rear of the cases that has a o-ring around it and a snap ring that holds it in. Balancer oil could be coming out there. I would clean that area real good and look again for the leak. I've never seen a 787 leak there before and I wouldn't try to remove that end cap unless I absolutely had to. That cap is also "sandwiched" in between the case halves and will not come out without a big fight. One thing could lead to another and then the next thing you know your pulling the engine and splitting the cases in order to repair the end cap that may not even be leaking.
Let us know what you find. DAWG