I've seen nothing specific. For info I wrote my company acceptance schedule for the S92 based on the Sikorsky Flight Check Procedures Manual, but it is purely a company document. As far as UK CAA is concerned, the EASA (or FAA) C of A is all that is required for a new aircraft. There will be requirements for continued airworthiness testing, but again these will be company procedures (although sensibly based on Flight Manual or FCP data) rather than "official" documents, as the onus has moved from the Authorities to the Operator. I've written schedules based on the (now withdrawn) UK C of A test schedules where they exist.
Forgot to say, the pilot is designated by the operator and should obviously be experienced enough to know when things are amiss, but there are no specific qualifications mandated by JAA/EASA.