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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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EN2549-060022F:
FPI for Acceptance: mfg batch size is 723 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Metallography: we can see some crevices and laps on crest threads at magnification 100x. What are their dimensions?
EN3037-060014AF:
FPI for Acceptance: mfg batch size is 770 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Metallography: we can see some crevices on crest threads at magnification 100x. What are their dimensions?
EN3381-040014AF:
In FAI report, thread major diameter tolerance is 3,86 to 4,00 mm. As per EN3381, maximum thread major diameter is equal to D1min – 0,025 = 4 – 0,022 – 0,025 = 3,953 mm.
Hopefully, actual values are in line with this maximum. Could you just please take this into account?
FPI for Acceptance: mfg batch size is 531 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Metallography: we can see some crevices on crest threads at magnification 100x. What are their dimensions?
EN3381-060028AF:
In FAI report, thread major diameter tolerance is 5,82 to 6,00 mm. As per EN3381, maximum thread major diameter is equal to D1min – 0,025 = 6 – 0,022 – 0,025 = 5,953 mm.
Hopefully, actual values are in line with this maximum. Could you just please take this into account?
FPI for Acceptance: mfg batch size is 1824 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [1201 to 3200] mfg batch size. In test report, 125 parts were FP inspected. Could you please clarify?
Metallography: we can see some crevices and laps on crest threads at magnification 100x. What are their dimensions?
EN3820-040032F:
FPI for Acceptance: mfg batch size is 515 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Many thanks in advance
Best regards
Julien
Message from Howmet Redditch:
Please see comments below and updated EN2549-060, EN3037-060, EN3820-040, EN3381-040 and EN3381-060 documents.
EN2549-060022F
FPI for Acceptance: mfg batch size is 723 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Standard plan has been used for FPI.
Sample plan ref ISO9152 table 4 to be used for future FPI sampling.
Ref Table 2 section 5.5.5 – requirement for 5 samples met for qualification
Metallography: we can see some crevices and laps on crest threads at magnification 100x. What are their dimensions? Dims added to report
EN3037-060014AF
FPI for Acceptance: mfg batch size is 770 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Standard plan has been used for FPI.
Sample plan ref ISO9152 table 4 to be used for future FPI sampling.
Ref Table 2 section 5.5.5 – requirement for 5 samples met for qualification
Metallography: we can see some crevices on crest threads at magnification 100x. What are their dimensions? Dims added to report
EN3381-040014AF
FPI for Acceptance: mfg batch size is 531 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Standard plan has been used for FPI.
Sample plan ref ISO9152 table 4 to be used for future FPI sampling.
Ref Table 2 section 5.5.5 – requirement for 5 samples met for qualification
In FAI report, thread major diameter tolerance is 3,86 to 4,00 mm. As per EN3381, maximum thread major diameter is equal to D1min – 0,025 = 4 – 0,022 – 0,025 = 3,953 mm. Hopefully, actual values are in line with this maximum. Could you just please take this into account? FAI updated – Values are within specification
Metallography: we can see some crevices on crest threads at magnification 100x. What are their dimensions? Dims added to report
EN3381-060028AF
FPI for Acceptance: mfg batch size is 1824 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [1201 to 3200] mfg batch size. In test report, 125 parts were FP inspected. Could you please clarify?
Standard plan has been used for FPI.
Sample plan ref ISO9152 table 4 to be used for future FPI sampling.
Ref Table 2 section 5.5.5 – requirement for 5 samples met for qualification
In FAI report, thread major diameter tolerance is 5,82 to 6,00 mm. As per EN3381, maximum thread major diameter is equal to D1min – 0,025 = 6 – 0,022 – 0,025 = 5,953 mm. Hopefully, actual values are in line with this maximum. Could you just please take this into account? FAI updated – Values are within specification
Metallography: we can see some crevices and laps on crest threads at magnification 100x. What are their dimensions? Dims added to report
EN3820-040032F
FPI for Acceptance: mfg batch size is 515 parts. As per ISO9152, tables 3 and 4, sampling plan for AQL = 0,065% shows a sample size equal to 200 since we have a down-arrow marked against [501 to 1200] mfg batch size. In test report, 80 parts were FP inspected. Could you please clarify?
Standard plan has been used for FPI.
Sample plan ref ISO9152 table 4 to be used for future FPI sampling.
Ref Table 2 section 5.5.5 – requirement for 5 samples met for qualification
Many thanks to HFS Redditch and Christelle for your quick reply.
Fine for me now, so, approved from my side.
Best regards
Julien