Short Course C: Special Topics on Implementation of Employers' Written Practice

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Learn how to implement NAS 410 / EN 4179 for aerospace NDT personnel qualification, including Written Practice requirements, techniques, proficiency reviews, recertification, and best practices from industry experts.


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$450
Nonmember/Associate: $550*
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9 October 2025
7:30 a.m. – 11:30 a.m. ET
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ASNT 2025
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1/2 day course

Credit Info

  • Contact Hours: 4 
  • IACET CEUs: N/A 
  • Valid for ASNT Level III recertification: Yes

Course Overview

NAS 410 / EN 4179 is the primary standard for NDT personnel qualification in the aerospace industry. This qualification standard adopts an employer-based qualification system, assuming the Employer is ultimately responsible for the qualification of its NDT personnel. Employer designates the Responsible Level III, the sole responsible person to implement Employer´s requirements in a sufficiently effective manner such that Employer´s NDT personnel shall be competent to do their daily work on Employer´s product/maintenance portfolio of parts and components and understand their roles and responsibilities. All related essential information should be established in the Employer´s Written Practice document, which governs the NDT personnel qualification at the Employer. 

This short course shall address general requirements as well as more advanced topics on the implementation of the Written Practice according to NAS 410 / EN 4179 qualification standard at the Employer correctly. Special attention will be given to the implementation of:

  • Techniques 
  • Annual Proficiency Review procedure
  • Recertification by Awarded Credit Activity
  • Gap analysis when transferring a qualification
  • Use of Outside Agencies and/or NANDTBs

This short course will provide to the audience examples of best practices from a professional Outside Agency approved by Czech (EU member) NANDTB (i.e. compliant to AMC.145.A.30(f) set of requirements), that is assisting companies all over the world to comply with customer, Nadcap, or the local authority (CAA, EASA, etc.) requirements.

Upon Completion, Learners Will Be Able To:

  • Explain the purpose and structure of NAS 410 / EN 4179 as it applies to aerospace NDT personnel qualification.
  • Describe the employer-based qualification system and the responsibilities of the Employer and Responsible Level 3.
  • Interpret the key elements required in a Written Practice document in accordance with NAS 410 / EN 4179.
  • Identify requirements and best practices for implementing NDT techniques under an employer's Written Practice.
  • Apply procedures for conducting Annual Proficiency Reviews and managing Recertification by Awarded Credit Activity.
  • Analyze and address qualification gaps when transferring personnel between employers or systems.
  • Evaluate the appropriate use of Outside Agencies and/or NANDTBs in meeting qualification and oversight requirements.
  • Recognize common audit findings and compliance challenges from authorities such as Nadcap, EASA, and national CAAs.

Questions? Contact us at education@asnt.org