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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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EN2859-060:
Mfg batch size is 500 parts. For NDT, as per ISO7689, AQL=0,065%. Thus, sample size is 200 parts (down arrow marked against sampling line in ISO7689:1988, tables 8 and 9 / as per ISO7689:2008, tables 3 and 4). On this batch, actual sample size is 80 parts
=> Answer already provided in qualification 1129-1.
EN2859-080:
Mfg batch size is 300 parts. For NDT, as per ISO7689, AQL=0,065%. Thus, sample size is 200 parts (down arrow marked against sampling line in ISO7689:1988, tables 8 and 9 / as per ISO7689:2008, tables 3 and 4). On this batch, actual sample size is 50 parts.
=> Could you please clarify? Shall we have the same statement as we have for other EN2859 references?
Just a reminder, EN2859 (both editions: 1995 and 2008) does not require any double shear test (please see clause 6).
Cadmium plating: PFC (LFC Industries – EN2859 Part Family – Manufacturing Process Flow Chart & Quality Control Plan) does mention EN2133 a stress relief operation before cadmium plating and hydrogen embrittlement relief baking after plating.
Cadmium plating CoC mentions only baking after plating.
=> Shall we get access to stress relief (before plating) data in the future?
Many thaks in advance,
Best regards.
EN2859-060:
Mfg batch size is 500 parts. For NDT, as per ISO7689, AQL=0,065%. Thus, sample size is 200 parts (down arrow marked against sampling line in ISO7689:1988, tables 8 and 9 / as per ISO7689:2008, tables 3 and 4). On this batch, actual sample size is 80 parts
=> Answer already provided in qualification 1129-1.
Agreed new qualifications will be carried out inline with the comments above
Comment from QER1129-1
This is the only information available, the testing carried out in the LFC CoC was in 2003, since then LFC have supplied bolts into industry with no issues and along with the 3rd party testing, no issues with the mechanical testing have been seen. The qualification of new parts will make sure the correct number of samples will be tested for this operation and any operation with require samples inline with a AQL.
EN2859-080:
Mfg batch size is 300 parts. For NDT, as per ISO7689, AQL=0,065%. Thus, sample size is 200 parts (down arrow marked against sampling line in ISO7689:1988, tables 8 and 9 / as per ISO7689:2008, tables 3 and 4). On this batch, actual sample size is 50 parts.
=> Could you please clarify? Shall we have the same statement as we have for other EN2859 references?
Agreed new qualifications will be carried out inline with the comments above
Comment from QER1129-1
This is the only information available, the testing carried out in the LFC CoC was in 2003, since then LFC have supplied bolts into industry with no issues and along with the 3rd party testing, no issues with the mechanical testing have been seen. The qualification of new parts will make sure the correct number of samples will be tested for this operation and any operation with require samples inline with a AQL.
Just a reminder, EN2859 (both editions: 1995 and 2008) does not require any double shear test (please see clause 6).
Noted. New qualification will be carried out in accordance with the latest Technical spec
Cadmium plating: PFC (LFC Industries – EN2859 Part Family – Manufacturing Process Flow Chart & Quality Control Plan) does mention EN2133 a stress relief operation before cadmium plating and hydrogen embrittlement relief baking after plating.
Cadmium plating CoC mentions only baking after plating.
=> Shall we get access to stress relief (before plating) data in the future?
Future qualifications will be carried out in accordance with the Technical specification and all required Supporting data will be reviewed and included in the Technical report (including Stress relief data).
Many thanks for replying.
Approved on my side.
Best regards.