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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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RTR – EN3820-060014F:
EN3820 latest issue is EN3820:2017. I think there is a wrong copy/paste in the list of reference documents since EN2549 is called instead of EN3820.
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Qualification by analogy:
Bolts with no hole shall qualify bolt with lockwire holes, split pin holes and both of them if we consider mechanical, metallurgical and non-destructive tests. What about supplementary dimensions due to holes?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 500 parts have been ordered and shipped.
What is the manufacturing batch size? Apparently, mfg batch quantity should be a little bit greater than 500.
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
For dimensions check, 40 bolts have been controlled if I am not mistaken.
For FPI, 80 bolts have been controlled if I am not mistaken.
ISO9152, table 3 specifies four different AQLs for FPI and dimension characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimension characteristics.
If we consider a mfg batch of 500 parts:
Sample size for AQL 0,065% = 200 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 50 parts (Acceptance number = 1 / Rejection number = 2)
Sample size for AQL 2,5% = 50 parts (Acceptance number = 3 / Rejection number = 4)
Sample size for AQL 4% = 50 parts (Acceptance number = 5 / Rejection number = 6)
See ISO9152, tables 3 and 4.
RTR – EN3381-040014AF:
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
Bolts with no hole shall qualify bolt with holes if we consider mechanical, metallurgical and non-destructive tests. What about supplementary dimensions due to holes?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 122 parts have been ordered.
For dimensions check, 20 bolts have been controlled.
For FPI, 20 bolts have been controlled.
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 122 parts:
Sample size for AQL 0,065% = 122 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 13 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 2,5% = 20 parts (Acceptance number = 1 / Rejection number = 2)
Sample size for AQL 4% = 20 parts (Acceptance number = 2 / Rejection number = 3)
See ISO9152, tables 3 and 4.
RTR – EN3381-050016RF:
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Bolts with no hole shall qualify bolt with holes if we consider mechanical, metallurgical and non-destructive tests. What about supplementary dimensions due to holes?
Appendix 2: Tensile strength tests results: could you please correct minimum requirement?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 525 parts have been manufactured.
For dimensions check, 40 bolts have been controlled.
For FPI, 80 bolts have been controlled.
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 525 parts:
Sample size for AQL 0,065% = 200 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 80 parts (Acceptance number = 2 / Rejection number = 3)
Sample size for AQL 2,5% = 80 parts (Acceptance number = 5 / Rejection number = 6)
Sample size for AQL 4% = 80 parts (Acceptance number = 7 / Rejection number = 8)
See ISO9152, tables 3 and 4.
RTR – EN4072-050020AE:
Latest issue of EN4072 is: EN 4072:2016 (E). Is there any major difference between EN 4072:2016 (E) and 07/2009?
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Appendix 2: Tensile strength tests results: could you please correct minimum requirement?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 150 parts have been manufactured.
For dimensions check, 32 bolts have been controlled.
For FPI, 50 bolts have been controlled.
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 150 parts:
Sample size for AQL 0,065% = 150 parts (Acceptance number = 0 / Rejection number = 1)
See ISO9152, tables 3 and 4.
On Acceptance Test Report, surface treatment has been performed as per MIL-C-83488 type II, class 3.
On RTR, clause 5, Aluminum IVD has been performed as per MIL-DTL-83488, type II, class 3.
EN4072 specifies MIL-DTL-83488, type II, class 3 (or EN6118).
RTR – EN2549-050028F:
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Bolts with no hole shall qualify bolt with holes if we consider mechanical, metallurgical and non-destructive tests. => Agreed.
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 250 parts have been manufactured.
For dimensions check, 40 bolts have been controlled.
For FPI, 50 bolts have been controlled.
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 250 parts:
Sample size for AQL 0,065% = 200 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 50 parts (Acceptance number = 1 / Rejection number = 2)
Sample size for AQL 2,5% = 32 parts (Acceptance number = 2 / Rejection number = 3)
Sample size for AQL 4% = 32 parts (Acceptance number = 3 / Rejection number = 4)
See ISO9152, tables 3 and 4.
RTR – EN2549-060018F:
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Bolts with no hole shall qualify bolt with holes if we consider mechanical, metallurgical and non-destructive tests. => Agreed.
Appendix 3: Fatigue tests results: why average cycle value is 122600 whereas all bolts reach 130000 cycles?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 87 parts have been manufactured.
For dimensions check, 20 bolts have been controlled.
For FPI, it is not clear since in Test Report, we have 80 and 20 parts. De we consider 80 or 20?
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 87 parts:
Sample size for AQL 0,065% = 87 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 13 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 2,5% = 20 parts (Acceptance number = 1 / Rejection number = 2)
Sample size for AQL 4% = 13 parts (Acceptance number = 1 / Rejection number = 2)
See ISO9152, tables 3 and 4.
RTR – EN2549-080032F:
AMS4967 latest issue is revision M. Is there any major difference between this issue and issue mentioned in QTR (AMS4967 revision K)?
Material certificate is compliant to AMS4967 revision L (May 2014).
For ISO3452, do we speak about ISO 3452-1:2013, Corrected version 2014-05-01?
Bolts with no hole shall qualify bolt with holes if we consider mechanical, metallurgical and non-destructive tests. => Agreed.
For tensile test, is it possible to add loads in Newton?
Since this is a renewal, mandatory tests and associated sampling are those for acceptance, not for qualification.
On Acceptance Test Report, 400 parts have been manufactured.
For dimensions check, 40 bolts have been controlled.
For FPI, 80 bolts have been controlled.
ISO9152, table 3 specifies four different AQLs for characteristics: 0,065% for FPI and 1%, 2,5% and 4% for dimensions.
If we consider a mfg batch of 400 parts:
Sample size for AQL 0,065% = 200 parts (Acceptance number = 0 / Rejection number = 1)
Sample size for AQL 1% = 50 parts (Acceptance number = 1 / Rejection number = 2)
Sample size for AQL 2,5% = 50 parts (Acceptance number = 3 / Rejection number = 4)
Sample size for AQL 4% = 50 parts (Acceptance number = 5 / Rejection number = 6)
See ISO9152, tables 3 and 4.
Many thanks in advance,
Best regards.
Julien
In section “additional documents”, powerpoint presentation “AHG Sampling plan”, slide 8 states that AHG will use ASQ-H1331.
First, as per SAE AS9138, clause 7.2, we have the following equivaleces:
“ANSI/ASQ Z1.4, which is equivalent to ISO 2859-1, JISZ9015-0 and JISZ9015-1, and GB/T 2828.1;”.
Then, ASQ-H1331 states that: “The c=0 plans in Table 1 are “associated” with the AQLs of ANSI Z1.4. In all of these plans, the protection afforded to the consumer is equal to or greater than the ANSI Z1.4 plans.”
“As discussed in this book, the c=0 plans were designed essentially to be equal or greater in consumer and average outgoing quality limit (AOQL) protection than the corresponding ANSI Z1.4 plans. ”
Thus, by considering AS9138, ANSI ASQ Z1.4 is equivalent to ISO2859-1 and customer protection is equal to or greater than ANSI ASQ Z1.4 by applying C=0 plans as per ASQ-H1331 (C=0 sampling plans).
Conlusion: agreed.
Best regards,
Julien