Don't go into the interview thinking it is going to be based around the FAA. I had mine for pilot as well in April and apart from the obvious training pipeline for pilot there wasn't much else on the FAA. The only other part was when he showed me pictures of a wildcat, sea king, merlin etc. Make sure you have plenty of examples for leadership experience and all the competency questions along with service knowledge, your comission and return of service, everything you possibly can know about going to Dartmouth and make sure you have good, solid answers for "Why do you want to join the armed forces" then "Why the Royal Navy instead of the Army or RAF" (you will most definitely get that question seen as you're applying for Pilot and the obvious choice would be the RAF). Would you serve on a submarine? How do you feel about possibly having to take a human life. There are a wealth of questions on here for you to look through. Make sure you know everything because it probably won't be tailored to the FAA. You will get questions on Surface Fleet, the RFA, the FAA the Royal Marines and the silent service as well so make sure you're clued up on everything. Most of all try to relax and be honest they can smell bullshit a mile off so don't even bother trying to make something up, they'll respect you more for just admitting you don't know the answer. (Obviously provided you do know the answer to most questions aha). They're not looking for someone who know' everything inside out already. They're looking for potential, show them you have it and you'll be laughing.
Good luck, be sure to let us know how it goes.
Regards,
Booner.