Magners, Winco
Please do a little more research re the 737 rudder 'hard overs' and the TWA 800 fuel tank explosion.
Neither resulted in the grounding of the fleets, both occured several times over a period of years before corrective action was initiated, and there are many who are not fully convinced that they have been fully resolved.
No system/legislation/procedures is/are perfect.
edited to add; that said, ours
was better than it is now.