Union Pacific Railroad

General Notes:

1. Renumbered from UP 7500 series to UP 6888 series upon conversion from 6000-horsepower C60AC (GE model AC6000) to 4400-horsepower C44/60AC
2. Built as UP 7000-7009; renumbered from 7000 series to 7500 series by GE during 1998-2000 at its factory in Erie, Pa., upon installation of upgraded engines.
3. UP 7501-7505, as UP 7001-7005, had original build dates of November and December 1995, as reflected on their original builder's decals; during the formal one-year test period, these units operated on UP and were returned to GE for modifications prior to delivery to UP in November 1996, with new builder's decals applied reflecting the new delivery date.

General Notes:

1. Renumbered from the 7500 series to the 6898 series upon conversion from 6000-horsepower C60AC (GE model AC6000) to 4400-horsepower C44/60AC.

Notes:

1. UP 7511 (2nd), delivered to UP on 7 January 2001, was built as a warranty replacement for UP 7511 (1st), which was retired in June 1999 due to fire damage; unit is painted in new "Wings" image, including the new lightning stripe color separation line; UP 7511 (1st) suffered fire damage on 7 June 1999; cause of fire was determined to be warranty-related; unit retired on 16 June 1999 and shipped to GE at Erie, Pa., on 17 June 1999; damage repaired and unit repainted to GE's red and gray scheme and renumbered to GECX 6002 in April 2000.
2. UP 6910, ex UP 7523, was delivered with a builder date of July 1998. At some point in time, the date on the builder decal was changed to September 1998.
3. UP DDA40X 6936: This number slot for 6936 is assigned to UP's Heritage Fleet DDA40X 6936
   (Read more about DDA40X 6936 as part of UP's Heritage Fleet)
4. UP 7549 was renumbered out of sequence to UP 6947 on 9 December 2008; renumbered into planned sequence as UP 6937 on 22 December 2008.

General Notes:

1. Renumbered from UP 7555-7579 series to UP 6944-6968 series upon conversion from 6000-horsepower C60AC (GE model AC6000) to 4400-horsepower C44/60AC.
2. All units painted with UP's new "Wings" image, including the new lightning stripe color separation line.

Notes:

1. UP 7555 was the first UP new GE unit with the new "Wings" image, completed at the GE factory in Erie, Pa., in November 2000; painted in the new Wings image during mid December 2000, but did not enter service until January 2001; UP 9826 (ex C&NW 8722) was repainted to full UP colors on 13 December 2000, becoming the first GE locomotive to enter regular service with the new Wings image.
2. UP 7549 was renumbered out of sequence to UP 6947 on 9 December 2008; renumbered into planned sequence as UP 6937 on 22 December 2008.

General Notes:

1. UP 6900-6946 were known as "Centennial" locomotives in commemoration of the 100th anniversary of the May 10th 1869 driving of the Golden Spike at Promontory, Utah.
2. Twenty-five units were stored at Council Bluffs, Iowa, in May 1980, with another 12 units stored at North Platte, Nebraska, and the remaining eight units being stored at Salt Lake City, Utah. The 37 units at Council Bluffs and North Platte were gathered at Las Vegas, Nevada, in early October 1980. The entire class (45 units - 37 units from Las Vegas and eight units from Salt Lake City) was moved to Yermo, California, during January and February 1982, where they remained for another two years.
3. Twenty-five units were reconditioned at Salt Lake City, North Platte and Omaha by March 1984; to keep these 25 units in operating condition, 14 other units of the remaining 20 were stripped of usable parts and recommended for retirement April 1984, and actually retired by July 1984.
4. All 45 units were again in storage by late 1984; some returned to service in late December 1984; all units out of service by early April 1985.
5. UP 6900-6924 were built on EMD order number 7134.
6. UP 6925-6946 were built on EMD order number 7198.
7. (Read more about UP's DDA40X locomotives)

Notes:

1. UP 6900 was donated to City of Omaha, Nebraska in September 1985, delivered in November 1986; moved in April 1988 northeast of Omaha Shops to Kenefick Park where it was on display with Big Boy 4023; the site was donated by Union Pacific to the City of Omaha for permanent exhibition; UP 4023 and UP 6900 were moved in May 2001 to make way for Abbott drive to be rerouted and the entire site of the Omaha shop was being redeveloped; moved to temporary storage near the Durham Western Heritage Museum at Union Station in Omaha pending preparation of a new display site; moved to Mid America Car in Kansas City in January 2005 to be repainted; moved on April 15, 2005 to Lauritsen Gardens on a bluff overlooking Interstate 80; the display was completed and opened to the public on December 1, 2005. (UP 4023 was moved on March 15, 2005.)
2. UP 6901 was donated to City of Pocatello, Idaho in October 1985, delivered on 26 November 1985, moved to Ross Park for display in March 1986.
3. UP 6902, 6908, 6909, 6914, 6923, 6924, 6926, 6927, 6933, 6934, 6940, 6941, 6942, 6943, 6945 (15 units) were traded to EMD in August 1986; scrapped.
4. UP 6903 was wrecked on April 6, 1974 near Cajon, California; moved to the Salt Lake City Shops and retired; sold for scrap to The Purdy Company at Lakepoint, Utah in June 1974.
5. UP 6904, 6905 and 6937 were sold to Precision National Corporation, Mount Vernon, Illinois on March 2, 1988; UP 6904 and 6937 were still at Precision on June 5, 1994.
6. UP 6906, 6910, 6918, 6920, 6929, 6931, 6932, 6935 (8 units) were traded to EMD in May 1986; scrapped by St. Louis Auto Shredding. (Dakota Southern Railway purchased one of the trucks from UP 6906 from St. Louis Auto Shredding, for its own DDA40X, ex UP 6925).
7. UP 6907 was moved from storage at Yermo in February 1984 to Salt Lake City to be stripped of usable parts; retired in June 1984 while stored unserviceable at Salt Lake City; sold for scrap to General Metals, Tacoma, Washington, in September 1984; seen en route from Salt Lake City to Tacoma on September 20, 1984.
8. UP 6909 was out of service in March 1985 when some of its carbody doors were used at Salt Lake City to repair wreck-damaged UP 3630, which had been in a side-swipe accident the damaged all of its carbody doors along its left side. The large Centennial lettering was visible on UP 3630 before it was painted.
9. UP 6911 was donated to Technological Museum of the Federal Electricity Commission (Mutec) in Mexico City, in March 1985.
10. UP 6912 was loaned for parts to the Feather River Rail Society, Portola, California; FRRS removed both engines, both generators, both electrical cabinets, both air compressors, all traction motors, and all brake components, leaving the cab and nose assembly and remaining carbody intact; UP 6912 was returned to UP at Salt Lake City, Utah, on 14 February 1987; sold for scrap to Durbano, Ogden, Utah, 2 April 1987; seen at Durbano in July 1987 completely stripped down to the frame, looking like a long flat car with a large fuel tank and four-axle trucks.
11. Craig Lacey wrote on August 18, 2018, as a comment during a discussion about Peacekeepr Rail Garrison: "Note that the handbrake system was left intact. A contractor competing for the Peacekeeper Rail Garrison feasibility-study contract reportedly had Durbano Metals prepare this 8-axle "low-cost, ready-made heavy-duty flatcar" as a test bed for the project. Another contractor won the contract instead, and this remnant of the 6912 went away."
11. UP 6913 was donated to the State of Texas in September 1985, delivered on March 10, 1986; displayed at Texas State Fairgrounds, Dallas, Texas
12. UP 6915 was donated on May 12, 1985 to Southern California Chapter of the Railway & Locomotive Historical Society, Pomona, California; delivered during July 1985; moved to Los Angeles County Fairgrounds, Pomona, California, on July 28, 1987
13. UP 6916 was donated to Ogden Union Station, Ogden, Utah in October 1985, delivered in January 1986.
14. UP 6917, 6928 and 6939 were sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois on October 24, 1985.
15. UP 6919 was sold for scrap to General Metals, Tacoma, Washington in August 1984.
16. UP 6921 was wrecked on August 27, 1978 at Point of Rocks, Wyoming; moved to Salt Lake City Shops, stripped for usable parts in September 1978; sold for scrap to Durbano, Ogden, Utah in February 1979.
17. UP 6922 was reconditioned and used on a Rocky Mountain Railroad Club excursion special between Denver and Speer, Wyoming over the 1984 Memorial Day weekend; displayed at Coffeyville, Kansas, in late June 1984 and used in dedication of the new Jenks Shops in North Little Rock, Arkansas on July 14, 1984; used on a Intermountain Chapter NRHS excursion special between Denver and Speer, Wyoming on October 19, 1984; donated to City of North Platte, Nebraska on June 23, 1985, delivered in August 1985; displayed at Cody Park; officially dedicated on October 10, 1985.
18. UP 6925 was sold to Dakota Southern Railroad, Wagner, South Dakota on April 20, 1987, stored at Chamberlain, South Dakota; empty shell, with engines, generators, air compressors and traction motors missing; not officially preserved; still there in early July 2024. (Read more about UP 6925 at Chamberlain, South Dakota)
19. UP 6930 was donated to Smoky Hill Railway & Historical Society, Shawnee Mission, Kansas, June 21, 1985, delivered August 1985; traded to Illinois Railway Museum in exchange for former Wabash coaches; UP 6930 was shipped from Kansas City to Chicago on October 31, 1991.
20. UP 6936 is the last operating UP DDA40X, still in service, used for special trains. (Read more about UP 6936 as part of UP's Heritage Fleet)
21. UP 6938 was donated during 1985 to Steamtown USA, Scranton, Pennsylvania; ownership of unit returned to UP in December 1988 following takeover of Steamtown by National Park Service (UP 6938 never left UP property); stored at North Little Rock, Arkansas until cosmetically restored and placed on display at Jenks Shops, North Little Rock, Arkansas in November 1989.
22. UP 6944 was donated to National Museum of Transportation, St. Louis, Missouri on August 14, 1984; moved in October 2014 to Norfolk Southern's Juniata Shops at Altoona, Pennsylvania, for cosmetic restoration, completed in mid May 2015 and returned to St. Louis (includes incorrect 60-inch Union Pacific medallions; should not have the word 'Railroad' on the medallion)
23. UP 6946 was donated to Feather River Rail Society in July 1984, delivered on August 20, 1984; unit was cosmetically restored, but stripped of usable parts by UP.

General Notes:

1. Leased from General Electric as warranty protection units; to be purchased later by UP.
2. UP's designation for these units is C44AC; GE's designation is AC4400CW.

General Notes:

1. UP's designation for these locomotives is C60AC; GE's designation is AC6000CW.
2. UP 7001-7005 had original build dates of December 1995, as reflected on their builder's plates; during the formal one-year test period, these units operated on UP and were returned to GE for modifications prior to delivery to UP in November 1996.
3. "UP's first two 6000-h.p. AC-traction locomotives have been undergoing performance tests during their first weeks of service. UP units 7000 and 7003 made their intermodal run from Chicago to Salt Lake City and underwent high-speed testing on trains between Salt Lake City and Green River. These units, plus four more 6,000-h.p. ACs -- UP 7001, UP 7002, UP 7004 and UP 7005 -- will soon be placed into service between North Platte and Green River in 12,000-h.p. pairs." (Update Line, Union Pacific Communications Department, November 26, 1996)
4. Renumbered from 7000 series to 7500 series at GE in Erie, Pa., upon installation of upgraded engines.

General Notes:

1. Built by GE to serve as warranty protection units for service on UP; painted in full UP paint, with red GECX letters and numbers; purchased by UP on 30 January 1998 upon expiration of the warranty protection period.
2. UP's designation for these units is C44AC; GE's designation is AC4400CW.

General Notes:

1. UP 7010-7012 were ordered as UP 7080-7082; the previous UP 7010-7012 number group was assigned to a canceled order for three SP AC6000 units (assigned SP numbers 600-602; GE serial numbers 49062-49064).
2. The UP designation for these locomotives is both C44/60AC and C6044AC; GE designation is AC6000 Convertible (Norm Metcalf reports that AC6000CW is displayed on builder's plate)
3. UP 7010-7079 (70 units) were assigned UP 7336-7405 in the December 1999 renumber plan; 30 units renumbered between June 2000 and September 2005; those 30 units are to be renumbered (out of sequence) back to the 7010 series to clear the 7300 series for additional new units from GE (UP 7377 was the first, renumbered to UP 7011 (2nd) on August 1, 2008).