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GP20u
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ATSF pre-"merger"
history		 "SPSF merger" history disposition
 ATSF-to-SPSF  SPSF-to-ATSF
GP20 power rebuilt and renumbered to GP20u power Jan77-Aug81
ATSF 3000-3074 series assigned to SPSF 2838-2908 roster
only units repainted are listed below; no units were renumbered
ATSF 1112 > 3112:1 >
  3012:2		 SPSF 3012[:2] rpnt 31Jul85-
  24Jul86		 ATSF 3012:2 rpnt bef 1Oct90 rnum to BNSF 2009
ATSF 1118:1 > 3118:1 >
  3018:2		 SPSF 3018[:2] rpnt 31Jul85-
  24Jul86		 ATSF 3018:2 rpnt bef 1Oct90 rnum/rltr to BNSF 2011 25Aug98
ATSF 1119:1 > 3119:1 >
  3019:2		 SPSF 3019[:2] rpnt 31Jul85-
  24Jul86		 ATSF 3019:2 no rpnt ret [date],
to TPW 2012 ???89,
  rnum 2050
ATSF 1128:1 > 3128:1 >
  3028		 SPSF 3028 rpnt 31Jul85-24Jul86 ATSF 3028 rpnt bef 1Oct90 rnum/rltr to BNSF 2018 27Oct98,
  ret 24Nov99,
to PRC
ATSF 1129:1 > 3129:1 >
  3029		 SPSF 3029 rpnt 31Jul85-24Jul86 ATSF 3029 rpnt bef 1Oct90 rnum/rltr to BNSF 2019 26Aug98
ATSF 1131 > 3131:1 >
  3031		 SPSF 3031 rpnt 31Jul85-24Jul86 ATSF 3031 rpnt 27Nov86-
  1Oct90		 rnum to BNSF 2000-2050 series
ATSF 1148 > 3148:1 >
  3048		 SPSF 3048 rpnt 31Jul85-24Jul86 ATSF 3048 rpnt bef 1Oct90 rnum to BNSF 2000-2050 series
ATSF 1152 > 3152 > 3052 SPSF 3052 rpnt 31Jul85-24Jul86 ATSF 3052 rpnt May88-1Oct90 rnum to BNSF 2036 12Sep98,
  ret 22Nov99
ATSF 1156 > 3156:1 >
  3056		 SPSF 3056 rpnt 31Jul85-24Jul86 ATSF 3056 rpnt bef 1Oct90 rnum/rltr to BNSF 2039 21Jul98,
  ret 22Nov99
ATSF 1158 > 3158 > 3058 SPSF 3058 rpnt 31Jul85-24Jul86 ATSF 3058 rpnt bef 1Oct90 rnum/rltr to BNSF 2041 9Sep98,
  ret 24Nov99,
to PRC
ATSF 1163 > 3163:1 >
  3063		 SPSF 3063 rpnt 31Jul85-24Jul86 ATSF 3063 no rpnt ret [date],
to TPW 2019 bef 10Aug89
ATSF 1168 > 3168 > 3068 SPSF 3068 rpnt 31Jul85-24Jul86 ATSF 3068 no rpnt ret [date],
to TPW 2013 ???89,
  rnum 2064
ATSF 1170 > 3170 > 3070 SPSF 3070 rpnt 31Jul85-24Jul86 ATSF 3070 rpnt bef 1Oct90 rnum/rltr to BNSF 2049 15Jul98
ATSF 1172 > 3172:1 >
  3072		 SPSF 3072 rpnt 31Jul85-24Jul86 ATSF 3072 rpnt bef 1Oct90 rnum/rltr to BNSF 2050 4Nov98
ATSF 1173 > 3173 > 3073 SPSF 3073 rpnt 31Jul85-24Jul86 ATSF 3073 no rpnt ret [date],
to TPW 2006 bef 10Aug89
ATSF 1174 > 3174 > 3074 SPSF 3074 rpnt 31Jul85-24Jul86 ATSF 3074 no rpnt ret [date],
to TPW 2001 ???89,
  scrapped