A Part 66 IA certificate is an additional privilege that allows an engineer to perform and certify a review of airworthiness (RA) or the conformity of major modifications and repairs.
You'll need to attend a renewal course if you’ve gained a certificate previously, but:
The duration of a certificate is 60 months.
Certificate of Inspection Authorisation (IA) renewal course - information [PDF 40 KB]
24066/11 Application for Inspection Authorisation (IA) initial or renewal course [PDF 27 KB]
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