No idea. I did think that the top fittings looked more than a little like access panel fasteners. As for the other bits, the large items could be reinforcing plates from cowlings or panels.

Certainly, but not conclusively (as yet), looking a bit more like aeroplane parts.

Anon.

Yes I would have thought some sort of fastener. These bits do mark the site of the crash though. Fuselage metal showing trauma as a result of fire. The smaller part has grey paint and a faint ‘D’ on it.[ATTACH=CONFIG]250774[/ATTACH]