Originally Posted by
procede
My guess is that they removed a row of seats to do the inspection.
yes, a row would need to be removed to pull the interior panels with relative ease.
below is I picture with what I would guess as the only ‘lock bolts’ keeping the plug from sliding up and out off the retention fittings. This is only speculation. I’m not familiar with how the lower part works. If it’s actually a hinge or just hooked in there.
Blue circles highlight possible lock bolts.