Typically, inspections like these are also done by engineers. If you work in a field like this, it is improtant to keep up to date with current developments. Like in this case, since it was built it was found that the alloy used wasn’t that great when contacted by chlorine. So an engineer seeing a broken hanger (along with some brown spots on other hangers) should have at least reported it and not just assumed it had always been like that. They should also have reported the brown spots. Typing this I do realize this was in 1984, and you couldn’t just go on the internet to check if brown spots meant anything. Then again, as one of my engineering mentors always said; “Assumption is the mother of all fuck-ups.”.
So it wasn’t an engineering fault but a lapse in inspection. Maintenance is required for all engineering. Always has been.
Typically, inspections like these are also done by engineers. If you work in a field like this, it is improtant to keep up to date with current developments. Like in this case, since it was built it was found that the alloy used wasn’t that great when contacted by chlorine. So an engineer seeing a broken hanger (along with some brown spots on other hangers) should have at least reported it and not just assumed it had always been like that. They should also have reported the brown spots. Typing this I do realize this was in 1984, and you couldn’t just go on the internet to check if brown spots meant anything. Then again, as one of my engineering mentors always said; “Assumption is the mother of all fuck-ups.”.