> Inspections can save a blade failure from happening, but they cannot be relied upon to prevent failures
You still are not addressing my point.
Of course inspections cannot be relied upon to prevent failures due to root causes that are not known prior to the incident.
But inspections are relied upon to prevent failures due to root causes that are known. And that's what failed to happen in this case.
Put it this way: by your argument, the NTSB's final report on this should be something along the lines of "this was an expected failure and the containment worked, so no corrective action needs to be taken". Do you really think that's what will happen?
Whereas by my argument, the NTSB's final report on this will be something along the lines of "the inspection process failed to properly catch a cracked fan blade, and corrective actions A, B, and C need to be taken to fix the process".
You still are not addressing my point.
Of course inspections cannot be relied upon to prevent failures due to root causes that are not known prior to the incident.
But inspections are relied upon to prevent failures due to root causes that are known. And that's what failed to happen in this case.
Put it this way: by your argument, the NTSB's final report on this should be something along the lines of "this was an expected failure and the containment worked, so no corrective action needs to be taken". Do you really think that's what will happen?
Whereas by my argument, the NTSB's final report on this will be something along the lines of "the inspection process failed to properly catch a cracked fan blade, and corrective actions A, B, and C need to be taken to fix the process".