JFZ90
I think you must have posted before reading mine!
Guesswork shouldn't come into it. SIs were issued by MoD(PE).
You may have been relatively safe in your car with a loose wheel nut. With luck you may even grind to a graceful halt. Unfortunately, not exactly the same as an aircraft.
I can't see how anyone would fail to see a loose connector on a Full Authority system is not one of the most serious defects imaginable. The above list of issues is inexcusable.