Phoenix
It's incredible that a large object, as flaperon, was lying at shore unnoticed, for several months, perhaps a year (by age of barnacles). A local resident said that he saw a seat and he burnt couple of suitcases, who knows how many other potential objects awaiting around those islands.
Quite easily done, not everyone in the world wanders around with an iPhone permanently up their ar*e on the internet and posting their life history thru media some people actually lead normal lives, so what would be that strange about rubbish washing up on your beach and never giving it a second glance.
To be honest we get all sorts of ****e washing up on the beach where I live and 99.99999% of the time we just walk right by it.