safe life vs fail safe
Good post jab. Cleary some on here have not studied the subject. I think it was Boeing that introduced safe life designs to reduce weight. These jets are not going to see the cycles of public transport aircraft of the same design. If it ain't broke don't fix it. goodness knows how much deteriation and catastrophic failures have been brought about to components by needless disasembly and reassembly. Clearly there are certain critical components designed down to the bone where it is sensible to dispose of them after a number of cycles in a particular environment with a good margin.
I do hope the lessons from the ageing aicraft programmes have been learned and the risks (hazards) properly identified and catagorised. not so with Nimrod as CH-C discovered.