Pictures 1-6: Flyby
Picture 7: T-38 escort
Picture 1: Aircraft with American as N9668
Picture 2: Launch in full American livery
Picture 3: Takeoff in NASA livery
Found by SpiderX22 on Virtual Globetrotting
Aircraft Type: Boeing 747-100 Shuttle Carrier
Registration: N905NA
Airline: NASA
Coordinates: 40°41'15.24"N 74°09'52.28"W
Visible through 2012 imagery on the leftmost lane.
This is N905NA, the 86th 747 built. It was delivered to American in October 1970 as N9668. It served there for a grand total of 4 years before being transferred to NASA as a shuttle carrier. Early in its career there was a famous photo taken of it, in full American livery, launching a shuttle.
On April 27, 2012, N905NA took off from Dulles International Airport with Enterprise on its back for its final flight. Its destination was JFK, but it wouldn't go there immediately. It took a scenic low-altitude tour of the New York area with a T-38 escort before touching down for the last time to be displayed at a museum.