Form 3520 must be paper filed separate from your return. Mail to: IRS Service Center in Ogden, UT 84409. I suggest you send it certified and do not require a signature.
Here is a comparison of the FATCA (Form 8938) and FBAR requirements. I imagine you need to file both but best to check.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"