Need an advice: Arriving from PHL on AA at 6:40 AM (most likely T4S) and departing to AUH on Etihad at 10:05 AM (T1?) on one ticket. Doable for someone with less mobility (slow walk)? Bags will be checked all the way. Does the person needs to go out of T4s and pass through security again in T1? The person do not have EU/spain visa.