TCM 1 482-1-11 -(MCR)- Blanc Aero Industries – LISI – Villefranche de Rouergue (FR) Lisi Villefranche Relocation

2 Replies to “TCM 1 482-1-11 -(MCR)- Blanc Aero Industries – LISI – Villefranche de Rouergue (FR) Lisi Villefranche Relocation”

1. Lisi Report Nr. VDR 2 EF/NA 27 883
   Issue: 17 September 2019
   Surface Coating Process Qualification Transfer “Bolt” Low Steel Alloy

   1. The report has to be signed by Lisi Quality Authority

   2. Para 1 Subject
   The qualification transfer of “surface coating” was performed on EN 4079-050010A bolt to EN 2133.
   EN2133 and EN 4079 required “Cadmium Plating and not “Silver plating” as written in the report.
   What process was subject for the qualification. Para. 1 has to be adapted.
   Please take note that EN 4079 is inactive for new design: Please provide a statement in the report that this is well known but the surface treatment tests is accepted due to the surface coating on of the thread, shaft and the 100° cone head shoulder.
   In addition the surface coating has to be qualified to EN 2133 (Issue P3, March 2019) and not to ISO 7689 as mentioned in the para. 3 of the Lisi report.

   3. Para 4.1 Microstructure
   The measurement of the thickness has nothing to do with “Microstructure”
   A micro-section with photos should be added to see the microstructure.

   4. Para 4.2 Adhesion test
   The answer is insufficient. The Coating is performed to EN2133.
   EN2133 requires under para 14.1.2 a detailed adhesion test. This has to performed, because this is a periodical (Monthly) test requirement (ref table 3 of EN 2133).
   Test results shall be documented with photos.

   5. Para 4.X Salt Spray test (missing)
   This test has to performed, because this is also a periodical (Monthly) test requirements (ref, table 3 of EN2133)
   Test results has to be documented with photos.

   Heinrich Hackmann
   Airbus Defence and Space
   TEIM
   85077 Manching
   Date: 25.03.2020

   Reply

   1. Heinrich,

      I am replying on behalf of Lisi Aerospace. They sent the following reply in French:
      1. Report signed on page 5 by LISI AEROSPACE
      2. Typo error in the report, the Cadmium Plating has been performed, not the Silver plating. See Issue 2 of the report. See also qualification report on cadmium plating according to specification EN2133.
      3. The measurement of the thickness is done on a micro section, hence its report in this section. See qualification report on cadmium plating according to specification EN2133.
      4. See qualification report on cadmium plating according to specification EN2133.
      5. See qualification report on cadmium plating according to specification EN2133.

      Reply