As the EB-57Bs were mostly retired to AMARC in late 1981, this was probably their last visit to Keflavik. 1516 is now at USAF Armament Museum, Eglin AFB, FL.
Cold weather service. These EB-57Bs were often seen stopping over on the way to and from continental Europe, and to my knowledge usually did some exercises with the 57th on either flight.