July/August 2023 - 27

impose additional training and certification requirements for
authorization to perform specific inspections, Walty noted.
Getting NDT Trained
In aviation, certification is obtained as inspectors through NAS410
(Qualifications and Certifications in NDT). The requirements
for training and certification are established by National
Aerospace Standard (NAS) 410.
" We all start as NDT trainees and progress through each level of
certification by completing classroom training and accumulating
experience hours. The certification process is rigorous, requiring
a substantial number of experience hours and classroom training, "
Walty said.
The process begins with formal classroom training in the NDT
method, followed by on-the-job experience, and examination to a
proficiency level after the training and experience requirements
have been met. The following is a brief description of the proficiency
levels:
* Level I - Performs calibration of equipment, test setups, equipment
operation - cannot make decisions on parts.
* Level II - Performs Level I duties, interprets test results, makes
accept/reject decisions and establishes procedures. This level
cannot approve procedures.
* Level III - Performs Level II duties, plus approval of procedures,
interpretation of specifications, supervision of training and
certification activities.
" Formal training hours for Level II vary from 32 for magnetic
particle testing and penetrant testing to 80 for ultrasonic testing,
and as much as 120 for training in both film and non-film
(digital) techniques for RT. The required experience ranges from
400 hours for penetrant testing to as much as 1,000 hours for both
radiography testing techniques, " Engelbart added. " The process
could take 6-18 months to qualify for Level II after the formal
training has been completed. An individual may be working on
multiple certifications simultaneously, but still has to meet the
required number of hours. "
There are various pathways to start an NDT career, including
universities, the military and apprentice programs with NDT
companies.
" Obtaining certification according to NAS-410 requirements
is a lengthy process that requires dedication and determination.
Many individuals in the NDT field have prior military experience,
as the military provides valuable training and experience hours
for certification. Additionally, some universities offer associate
degrees in NDT, providing the necessary classroom hours, " said
Walty.
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July/August 2023

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