Agreed Air Ace
This could be a perfectly healty specimen, only to be taken out by something simple....like 50% JetA1 in the tanks.......or any number of otherwise crazy things. Iced up fuel vents, bugs in fuel vents....who knows how many things could get you airborne and slowly cripple your performance.
Was YSRI fogged in or something? No doubt he considered it and believed he could make YSBK with no problem.
With 7000' from Nth of YSRI, why would it not make it overhead YSBK at a good height on one engine? ATC would give him the airspace.
A few things not adding up here.
J