The only visible number I can see is in this image. The code is E366. It's adjacent to the ends of two electrical wires that are screwed into the aluminium.
Today I found this aircraft part on the Sicilian coastline precisely here: 38.16727872171935, 12.768899395479409 (Open in Google) It appears to be part of an aircraft's fuselage that's been washed up. Can anyone identify the aircraft? Many thanks.