I've seen that before, but it's bloody impressive - especially as it was made in 1926 apparently.
Comment on the British Pathe site says the woman is a pilot, Gladys Ingle, also a member of "13 Black Cats" which apparently was a Hollywood daredevil group.
Lot of setting up and camera work there - there's plenty of close-up camera work of her on the wing, even one shot which looks like it was taken from near the tail of the Jenny, and this was well before Go-Pro.