PSA San Francisco diagram, 1987
A Pacific Southwest Airlines (PSA) diagram of San Francisco International Airport in October 1987.
The diagram shows PSA’s location in Terminal A (since demolished) adjacent to USAir, which had closed its acquisition of the airline that May. The map also shows Northwest Airlines’ locations in Terminal A and the Central Terminal, the carriers operated a fairly extensive codeshare from 1986 to early 1988.
The map, unfortunately, does not show gate numbers.