The paperwork cost isn’t negligible at all. For example a company I used to work for had to replace a simple O-ring that failed. It’s an old part and quite rare these days and cost $800 to replace. You could buy a functionally equivalent (likely better) uncertified part for about 5 cents. That is why uncertified parts are such a problem, because certified ones are so incredibly expensive. Plenty of companies would love to step in and buy a few thousand O rings and sell them for $400 and a few are willing to forge a paper trail to make it happen. It’s a problem that I don’t really think will be ever totally solved without making certification too easy and potentially sacrificing safety by having bad certified parts.
If you spent $800 on an oring and it fails and the plane goes down, the manufacturer is liable. If you spent $0.05 on the oring and the plane goes down, you’re liable. Like you said, paperwork isn’t cheap. Because its basically liability insurance. If you made the oring, would you accept liability for $0.05?
The problem isn’t the manufacturer or the operator, it’s the middleman looking to make a profit on the the difference. In any case $800 is an absolutely ridiculous price point regardless of liability. I don’t know where the fair price point is but not even close to that. Liability isn’t the primary driver for the cost anyway, it’s difficulty of certification. Getting any part certified runs from high 5 figures to many millions of dollars and these are all extremely low volume parts. Boeing has only made around 11,000 737s since 1967. The plane I’m working with now only has around ~250 built since 2015 and is quite successful. For comparison Toyota produces about 20 cars per minute. When you need to pay back certification costs and turn even a modest profit on such low volume you need to charge a ton for each part.
To be clear I am absolutely not in support of non certified parts, it’s just a big problem in the industry and for rather obvious reasons.
The paperwork cost isn’t negligible at all. For example a company I used to work for had to replace a simple O-ring that failed. It’s an old part and quite rare these days and cost $800 to replace. You could buy a functionally equivalent (likely better) uncertified part for about 5 cents. That is why uncertified parts are such a problem, because certified ones are so incredibly expensive. Plenty of companies would love to step in and buy a few thousand O rings and sell them for $400 and a few are willing to forge a paper trail to make it happen. It’s a problem that I don’t really think will be ever totally solved without making certification too easy and potentially sacrificing safety by having bad certified parts.
If you spent $800 on an oring and it fails and the plane goes down, the manufacturer is liable. If you spent $0.05 on the oring and the plane goes down, you’re liable. Like you said, paperwork isn’t cheap. Because its basically liability insurance. If you made the oring, would you accept liability for $0.05?
The problem isn’t the manufacturer or the operator, it’s the middleman looking to make a profit on the the difference. In any case $800 is an absolutely ridiculous price point regardless of liability. I don’t know where the fair price point is but not even close to that. Liability isn’t the primary driver for the cost anyway, it’s difficulty of certification. Getting any part certified runs from high 5 figures to many millions of dollars and these are all extremely low volume parts. Boeing has only made around 11,000 737s since 1967. The plane I’m working with now only has around ~250 built since 2015 and is quite successful. For comparison Toyota produces about 20 cars per minute. When you need to pay back certification costs and turn even a modest profit on such low volume you need to charge a ton for each part.
To be clear I am absolutely not in support of non certified parts, it’s just a big problem in the industry and for rather obvious reasons.