In 2 weeks, I will be flying from IAD Dulles (Washington DC) to Frankfurt (FRA) on Lufthansa LH417, then transferring to Air Dolomiti EN8870 to Pisa PSA. I have a total layover of 2 hours and 50 minutes between flights. I have a U.S. Passport. I am arriving from a non-Schengen country (the U.S.) into Schengen, then departing to another Schengen country.
My questions are:
1. is that enough time to pass through EES (I must register first) and to make my next flight in time?
2. I understand that both Flights arrive and depart from Terminal 1 - but which Concourse though?
3. Do I have to pass through airport security again after arriving in Frankfurt, and before I depart for Pisa Italy?