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Conditions for approval required by: Julien Gauther
Certification of Aerospace Products to international quality Standards
Certification of Aerospace Products to international quality Standards
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EN4072 screws have offset cruciform recesses. EN4072 specifies specific recess removal torque values. Thus, why, in both QTP and QTS, this test is “NA” for EN4072 screws?
Hopefully, we have recess removal torque test results in relevant CoC/TR. This test is required only for Qualification as per ISO9152, not for Acceptance.
Many thanks Daniel for complementary explanations about fatigue and coating tests.
Best regards,
Julien
Due to the fact that AHG ( or other suppliers ) provides results for some tests which are not mandatory for acceptace as COC of material batch, TUS ( but which are from my point of view interesting for quality assurance of the product) my templates for QTP and QTS cover all tests .
After, I customize it depending of the EN and if it is a new qualification or renewal dossier . It is why the recess test is “NA” for this reference following the acceptance test grid .
Thanks Daniel, it is clear for me now.
Approved from my side.
Best regards,
Julien