Right you lot settle down! I asked the lady perfectly nicely (for me) to explain more fully exactly where and what she was talking about.
Is this it?
http://www.airliners.net/open.file/1170415/M/
No doubt an engineer will explain- I only count wings on my walkaround- 2 in number (hopefully). However it is not an important panel (the one on top of the fairing in front of the teardrop thingy?). It carries no load.
You might not believe it, but even the mighty 747, whose flap fairings (it just hides all the mechanism for holding and driving the flap out) are as large as bathtubs are broad, can fly without the fairing fitted. When they crack (they are only fibreglass), they are removed altogether from that position until a new spare can be delivered. It exposes all the mechanism to the air. Is it important? Not in the least.
http://www.airliners.net/open.file/0595976/M/
So if the whole darn fairing is not needed, a little access panel in the fairing is less important than brushing your teeth at night to prevent decay if you wear dentures anyway.