Locomotive #4004
was part of auto-train's first batch of locomotives -- a
U36B built by GE in November 1971 (builder's number 38035)
to specifications of the SCL.
Wrecked and
scrapped March 1973.
Image: Stan
Jackowski
It
came with Blomberg trucks, but was Outfitted with GE FB-2
hi-adhesion trucks (for testing) in July 1972, as seen here.
Image: Stan
Jackowski
Photographed
November 12, 1972 at Lorton, once again with Blomberg trucks
Image: Richard
Wright
Locomotive 4004,
photographed March 1, 1973 -- twelve days before being lost.