Originally Posted by Whale Driver

You rarely see pictures in Prelim reports. My guess is the NTSB is going after an Emergency AD.

"None of the surfaces exhibited visible evidence of corrosion or other preexisting damage. The right wing also exhibited fatigue cracks in the lower spar cap at the same hole location extending up to 0.047-inch deep."

SB1006 is for corrosion behind the fuel tank mid spar.