Oligoe
Agree with your comments, but this is 1 hour after engine shutdown.
There would be other bigger issues if the FOHE had a leak!
Leewan
If oil samples & consistency/levels/consumption/Px is within limits and px/scavenge filters are clean, your operator may deem it satisfactory.
However, it could be indicative of a problem. Further investigation reqd me thinks. Anything in the FIM Chapter 79-00-00?
BAe146???