[driftdiver]

An example of what the fatal incidents looked like.

“The FAA coordinator reported that the pilot’s airplane did not meet the requirements of FAR Part 103. Visual meteorological conditions prevailed during the bright nighttime flight. The pilot held a FAA private pilot certificate with an airplane single engine land and instrument airplane ratings.

An examination of the wreckage revealed components associated with the pullback shackle (assembly), which provides structural support to the wings, were missing. The wings were found folded inward from their in-flight rigid position.”

[wrench]

"An examination of the wreckage revealed components associated with the pullback shackle (assembly), which provides structural support to the wings, were missing. The wings were found folded inward from their in-flight rigid position.”" Part 103 refers to ultralights. These are toys, more like flying lawnchairs than real airplanes. They aren't maintained by trained licensed machanics, nor inspected by licensed inspectors. Even the good ones (oxymoron when referring to ultralights) will come apart if the very narrow flight envelope is exceeded.

If you leave the strut bolts out of a real airplane, it will fold the wings, as well. But this is why there is a reqirement for properly trained maintenance people to inspect and repair certified aircraft.

[tcrlaf]

Your forgot to include the:

“resulting in an unscheduled landing/collision with terrain.”