The wing bolts in the Bo have just been replaced. The old ones were in the wrong way round. Short bolts where the long ones go - the nuts held by only a couple of threads. Long ones where the short ones go - the nuts packed with washers so they tighten down on something.
Isn't it strange that out here we've never really had any problems with the wing bolts in Bonanza's. It's only since CASA decided that they had to be inspected and replaced, that these problems continue to re-occur. As far as I'm aware, we're the only country where this idiotic policy persists.
I inspected an A36 recently where the wing bolts and fittings were corroded because they were installed dry.
The Bonanza wing bolt issue is a prime example of CASA being derelict in their duty and asleep at the wheel. Safety has not been enhanced one little bit. The current policy and CASA's inaction have only made matters worse. Much worse than it ever was.