The new gearbox also has a redesigned lubrication system. In FAA-witnessed testing of the new gearbox for loss of primary lubrication, the gearbox was operated for 500 nm at 80 knots and had no noted anomalies after tear down.
Is that very careful wording or just a Reporter's paraphrasing?
Run dry or loss of oil pump(s) leaving only splash lube?
We know what happens when the original gearbox loses all of its contents and is flown in violation of the Check List.