4449 was removed from display on December 13, 1974, and restored at the Burlington Northern Railroad's Hoyt Street roundhouse in Portland.
The locomotive returned to operation on April 21, 1975, wearing a special paint scheme of red, white, and blue.
Because the original whistle was stolen, two replacement whistles were fitted to the locomotive: a Hancock 3 chime from a Spokane, Portland and Seattle Railway Challenger which was taken off the Spokane, Portland and Seattle 700, and an Atchison, Topeka and Santa Fe Railway 6 Chime whistle, which was later swapped out for a 6 chime off an AC series Cab Forward.

As part of the American Freedom Train, the locomotive pulled a display train through most of the contiguous United States.
Afterwards, 4449 pulled an Amtrak special, the Amtrak Transcontinental Steam Excursion during 1977.
After nearly two years on the road, 4449 was returned to storage in Portland, this time under protective cover and not exposed to the elements.
4449 was removed from display on December 13, 1974, and restored at the Burlington Northern Railroad's Hoyt Street roundhouse in Portland. The locomotive returned to operation on April 21, 1975, wearing a special paint scheme of red, white, and blue. Because the original whistle was stolen, two replacement whistles were fitted to the locomotive: a Hancock 3 chime from a Spokane, Portland and Seattle Railway Challenger which was taken off the Spokane, Portland and Seattle 700, and an Atchison, Topeka and Santa Fe Railway 6 Chime whistle, which was later swapped out for a 6 chime off an AC series Cab Forward.
As part of the American Freedom Train, the locomotive pulled a display train through most of the contiguous United States. Afterwards, 4449 pulled an Amtrak special, the Amtrak Transcontinental Steam Excursion during 1977. After nearly two years on the road, 4449 was returned to storage in Portland, this time under protective cover and not exposed to the elements.
Southern Pacific 4449