Originally Posted by Whinging Tinny
The 3 white access panels you see are impact resistant and of a different spec to the outer normal panels.
Thanks for that Tinny. I'm reading the whitish surface as burnt paint, so that would indicate a multi surface component that does not have fuel in direct contact with the external surface at that location, thus minimal heat sink effect from the fuel load.
They are not hand holes as such, people can and do get into them to gain entry into the fuel tanks.
I had wondered about that. Thanks.