TCM 1 1093-(R) – Paolo Astori SPA – Gattico (IT) PQ400

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Conditions for approval required by:  Julien Gauther

4 Replies to “TCM 1 1093-(R) – Paolo Astori SPA – Gattico (IT) PQ400”

  1. In FAI, clause 5 « SPECIAL PROCESSES”, ISO3452 seems to be missing.

    In PFC, raw material is compliant to AMS5731. However, EN2906 calls out EN2399 or EN3639 for raw material. CARPENTER’s CoC does not mention any conformity to EN raw material standards.

    1st NDT is carried out after nut forming.
    2nd NDT is carried out after passivation. Generally, NDT is done after any surface finishing.
    As per ASTM E1417, we have this requirement: “6.8.2 Surface Coatings—All coatings and other surface conditions, such as, paint, plating, corrosion, etc. shall be removed from the area to be examined prior to penetrant examination. The penetrant examination shall precede any surface finish, such as anodize, except for inservice parts that may be examined without removing the anodize.”
    FPI requires the use of some products (penetrant, developer…). How can we make sure that these kind of products are not detrimental for passivation?
    After FPI, parts shall be cleaned. Does cleaning operation affect passivation performance?
    Do we have the same study as this done for qualifications 981 and 1043 for instance?
    Many thanks in advance,
    Best regards.

  2. Just a correction in text above: please replace “Generally, NDT is done after any surface finishing” by “Generally, NDT is done BEFORE any surface finishing”. Sorry.

  3. In FAI, clause 5 « SPECIAL PROCESSES”, ISO3452 seems to be missing.
    -> ISO3452 reference added. Document revised

    In PFC, raw material is compliant to AMS5731. However, EN2906 calls out EN2399 or EN3639 for raw material. CARPENTER’s CoC does not mention any conformity to EN raw material standards.
    –> AMS5731 has the same chemistry of EN2399 and EN3639. See declaration on test report and FAI pag. 15. For the future, New raw material batches will report also the conformity to EN specs.

    1st NDT is carried out after nut forming.
    2nd NDT is carried out after passivation. Generally, NDT is done after any surface finishing.
    As per ASTM E1417, we have this requirement: “6.8.2 Surface Coatings—All coatings and other surface conditions, such as, paint, plating, corrosion, etc. shall be removed from the area to be examined prior to penetrant examination. The penetrant examination shall precede any surface finish, such as anodize, except for inservice parts that may be examined without removing the anodize.”
    FPI requires the use of some products (penetrant, developer…). How can we make sure that these kind of products are not detrimental for passivation?
    After FPI, parts shall be cleaned. Does cleaning operation affect passivation performance?
    -> All produtcs used during FPI inspection are according to AMS2644 specification (inspection material and penetrant) We also performed internal tests on our parts to verify if FPI materials and final cleaning chemical products (NaOH based) could be detrimental for surface CP finishing such as passivation. No difference has been detected before and after FPI complete process.

    Do we have the same study as this done for qualifications 981 and 1043 for instance? –> Yes, all of them are A286 nuts

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