Yes I am aware of the requirements for a duplicate inspection. However, there is no link to licensing. After all, UK major airlines have operated safely for years with very few licensed engineers among the many people who inspect and maintain their aircraft. Company approval worked well under the CAA and could work just as well under EASA.
You forget that the UK CAA ignores the requirement for duplicate inspection in respect of many aircraft on the register.
To say that an unqualified and unknown person can sign off a duplicate inspection is not quite true now is it.......please let everyone know the real requirements for the person (not a licensed engineer) who performs the inspection to confirm that the first person has not reversed the controls or similar.
Regards,
DFC