JF Mezei wrote on Mon, 15 Oct 2018
16:40:04 -0400:

On 2018-10-14 03:37, Fred J. McCall wrote:

But why was that particular bolt loose? Design flaw? Bad
manufacturing? Lack of retainer? Bad maintenance procedure? Higher
than predicted vibration levels? You need to know and just inspecting
that particular bolt just adds to the inspection load without solving
the potential problem.


If you are NASA and find a worker forgot to tighten a bolt and this was
not detected, there will be a 3 year long Commission that will do a
comprehensive review of ALL aspects of assembly/quality assurance and
require 15 people sign off on that one bolt and fill out 173 separate forms.


Your ass must get really sore, pulling all that stuff out of it.


Very few would bet that Russia has a quality assurance that is on par
with NASA. But sometimes "it'd good enough" works well enough and ends
up costling a lot less than the NASA way.


Except it doesn't "cost a lot less" because that savings is wiped out
and then some the next time you lose a vehicle.


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn