hi Good morning,


I request all my diver friend to please let me know about the 3.9 training/course.

i have seen companies are now looking for 3.9 inspection divers.i tried to find out about it,and so i called the TWI,in UK,but they say that they have no course called 3.9....


what i have found is it is a PCN ultrasonic testing course.i dont know much but this is what i came to know from google.

 is this a surface or underwater course?

where is the training conducted?

is this CSWIP or PCN ?


will be heartily thankful to all for posting with the information u have,so that we can let our dive buddies to know more about it.


thanks a lot for ur time..take care and dive safely.




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