I wonder if whomever was flying it closed the cowl flaps after shutdown or just forgot about them altogether after closing them at TOPC
Roma looks like the spot...my old girl has been far and wide of late...as far south as Nimbin and as far west as The Rock.
She's
supposed to be in the hangar at Flinders now being stripped and gutted for new paint and interior.
Think I'll make a quick phone call
Edit.
Dr I hope you wiped it off after