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ESA Repair and Modification recertification

The ECSS-Q-ST-70-07, ECSS-Q-ST-70-08 and ECSS-Q-ST-70-38 standards have been superseded and replaced by ECSS-Q-ST-70-61.

Participation in this recertification requires a valid ESA Repair and Modification certificate (ECSS-Q-ST-70-28). You can participate in the recertification if you wish to maintain your certification. The recertification must be taken before the certificate's expiry date. You have the option of getting an extension for up to six months, after which you can no longer be recertified, but must do a full certification.


  • The requirements of ECSS-Q-ST-70-28
  • Soldering technology
  • Selection of repair equipment
  • PCB-design and construction
  • Repair work and methods
  • Replacement and repair of solder land and tracks
  • Repair of multilayer PCB
  • Modification methods and technology
  • Individual theoretical and practical test (certification)

Prior to the certification, the participants must also submit the following to HYTEK:


DKK 4,100.00

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17. Jun. 2024 - 18. Jun. 2024
9. Dec. 2024 - 10. Dec. 2024
16. Jun. 2025 - 17. Jun. 2025
8. Dec. 2025 - 9. Dec. 2025
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