We sort of like rebuilding the P-42s. Several items
1. Use of AC traction the obvious fuel savigs.
2 However you have as well HEP might need only a notch 3 or 4 prime mover speed to provide enough power. It might even vary with load ? So when traction power not needed then prime speed much less. As well when in dynamics part could be diverted to the HEP inverter. The long waits at some stations would cut the noise and fuel consumption,
3. The trucks problem may not be fixable unless new trucks are installed. Maybe anyway with AC traction motors ?
4. Parts is a problem. The contract would need a guarantee of at least 20 years of parts with only say a 5% temporary shortage of no more than say 90 days. Any shortage of parts supplied within 5 hours. Parts for locos at terminals SEA, EMY , LAX, SAS, NOL, ATL, Florence, Sanford, MIA, CLT, RVR, CHI = All locations, Beech, WASH, Bear, Wilmington, PHL, ALB, SSY, New Haven, BOS, Brunswick , ME. Would GE like those restrictions? hardly think so ?
5. Plenty of extra noses for grade crossing collisions. That applies to new Siemens as well.
6. Fuel capacity might be a problem if the rebuild requires DEF.
7. Must be fully compatible operating with one or more SC-44s (ALC-44). That includes with P-42 at one end and Siemens at other end.
8. Will require the FOC connection operatable with any function that will ever be added.
9. Controls at rear to operate in case needed to operate in reverse until can reach place to turn around.