Union Pacific Railroad

General Notes:

1. The UP designation for these locomotives is SD9043AC; the EMD designation is SD90MAC.
2. Many of the units in the UP 8025-8074 group (order number 956613) have 936613 as the order number on their builder plates, instead of the correct 956613.
3. UP 8242 was wrecked on 9 August 2000 at Springfield, Colorado, while in service on the C-CQEY1-08 from Cochise, Ariz., to Energy, Colorado; damage repaired and unit returned to service on 8 April 2001 painted with UP's full width nose wings; the first SD9043AC to receive the wings.

Notes:

1. UP 8025 and 8088 were wrecked (along with UP 6646) on 14 December 2001 at Pacific, Missouri; all three units retired due to wreck damage.
2. UP 8150 has builder number 966714-81 and frame number 966714-76; UP 8155 has frame number 966714-81. At the time of a check on 3 October 2005, UP 8155 was missing both builder plates, making a confirmation of builder number and builder date impossible.
3. UP 8160 in this group is the second unit of similar design to carry the number; the first UP 8160 (now UP 8500) was the first EMD pre-production SD90MAC-H, built in August 1996; that unit became UP 8500 in August 1998.
4. UP 8201-8203 are the second units of similar design to carry these numbers; the first were part of the eight-unit group of pre-production SD90MAC-H units, now numbered UP 8501-8503; the 8204 number was applied to the EMD-demonstrator unit, not to a UP-painted unit; that unit is now UP 8504.