I would think the damage to No1 has been caused by the AAR pod detaching or a prop / pod ground strike during the landing event, it appears to be lying some distance behind the aircraft.. that much out of balance prop damage on a running eng would have resulted in the loss of the prop or engine..
I think there is also a large dent to the port front fuselage around the cockpit glazing, seen best in the photo in post #61. Tree strike on very short final?