July 16, 2026

Statement of Work for

Locomotive Sustainment (Technical Field Support) for Army Locomotives

RMS IDIQ CLIN 00500 (00501, 00502, & 00503)

1. Background

The U.S. Army owns and operates a mixed fleet of road-switcher locomotives. The locomotive fleet is a mix of vintage EMD General Purpose conventional diesel-electric locomotives and modern multi-engine GenSet type locomotives. The Army requires expert locomotive field service support to repair and maintain these locomotives to establish an increasing locomotive operational capability rate and increase operational safety. Currently there are Army Installations at risk of not meeting critical Rail missions due to non-operating locomotives. This task order will provide the necessary technical support to return non-operating locomotives to safe operating condition.

2. Description

The Contractor shall provide all labor, material, and travel required to perform locomotive repairs, troubleshooting and diagnostics. All work will be performed on U.S. Army Rail Installations. This task order is for work to be performed at 9 different locations on 22 locomotives.

3. Type of Contract

Task Order within Indefinite Delivery/Indefinite Quantity (IDIQ) Contract

4. Period of Performance

All work is to be completed no later than 6 months from contract award. A heavy emphasis on quick repair times and short schedule cycles is highly desired.

5. Place of Performance

This contract requires various technical tasks to be performed on locomotives at the locations in Table 1.

6. Requirements

Locomotive Technical Support: Technical support work is listed next to the locomotive Requiring support in Table 1.

7. Documentation and Reporting

a. Following the completion of each locomotive repair, troubleshooting or diagnostics, the contractor shall complete and submit a PM sheet to the Volpe Center Contracting Officer’s Representative (COR), detailing the work performed and the outcome. PM sheets shall include the following information as a minimum:

i. Operating status and work performed on each locomotive.

ii. Issues experienced during the inspection process.

iii. A description of any repairs that are required within the next 92-days for conventional locomotives and 184 days for the GenSets, including parts and material.

8. Additional Requirements

a. Passes and badges: Contractor employees shall obtain the required employee and vehicle passes as required.

b. Field Service personnel shall possess expert knowledge of the N-ViroMotive GenSet and conventional locomotives and must be capable of installing current and outstanding locomotive component field modifications and upgrades, including software and firmware revisions and updates. This includes having the capability to troubleshoot all electronics components including N-Force (National Railway Equipment Co. N- ViroMotive locomotive operating software and hardware).

c. The contractor shall have all necessary tools, diagnostic and test equipment to conduct thorough inspections of the locomotives, conduct maintenance inspections, and to perform repairs and diagnostics in the field on-site where the locomotives are located.

d. The Contractor's work shall not interfere with normal Government or Military business.

In those cases where some interference is unavoidable, the Contractor shall minimize the impact and effects of the interference.

e. The Contractor shall notify the COR of any difficulty in scheduling work due to Government controls.

Table 1, Locomotive tasks

Qty. Location USAX Model Tasks

1 Anniston 1400 GP10 Troubleshoot and repair loading issues. This locomotive was recently overhauled with N-Force control software, and it will not load.

2 Bliss 4625 GP10

1. Troubleshoot why the locomotive drops RPM in emergency, but still loads around 300 amps

2. replace #14 head (leaking coolant)

3. replace 150 POP (not resetting correctly)

3 Bliss 4600 GP10

1. Replace EBV valve

2. replace all rocker arms and cam bearings

3. replace air compressor pop off valves

4 Carson 4611 GP10 Adjust side bearing clearance 5 Carson 4653 GP40-2 Adjust side bearing clearance 6 Carson 6506 3GS21B Perform damage assessment from derailment

7 Eustis 1880 GP10 Perform condition assessment and provide a report detailing necessary repairs

8 Eustis 4624 GP10 Perform condition assessment and provide a report detailing necessary repairs

9 Hood 6505 3GS21B

1. Replace air conditioning unit to 74-volt drop-in style locomotive type,

2. perform full (9-yr) CCB26 Airbrake service

10 Hood 6524 3GS21B

1. Replace air conditioning unit to 74-volt drop-in style locomotive type

2. Replace coolant vent hoses (all three engines)

11 Hood 4655 GP40

1. Replace air conditioning unit to 74-volt drop-in style locomotive type

2. Troubleshoot/repair ditch lights

3. replace/rebuild 580 blowdowns

4. replace top middle brush holder

5. replace reverser motor

6. troubleshoot/repair event recorder

7. troubleshoot low oil pressure

12 McAlester 1877 GP9 Has 0.75-inch gauge in L3 wheel flange. Reprofile to true up.

13 MOTCO 1872 GP10 1. troubleshoot / repair non-operating ditch lights

2. replace ball valve: air leak on 0.75-inch ball valve under brake.

14 MOTCO 4650 GP10

1. replace air flow meter

2. troubleshoot/repair ditch lights

3. repair soft floor in cab entrance

4. replace 580 valves on main res.

15 MOTSU 1868 GP10 Replace fan shutters 16 MOTSU 1869 120T Replace reverser motor and replace broken blower shaft 17 MOTSU 4632 GP40-2 Replace fan shutters

18 MOTSU 4646 GP40

1. Install locomotive event recorder,

2. replace #13 upper water jumper,

3. Install air compressor rebuild kit,

4. troubleshoot/repair low voltage ground on negative side, 19 MOTSU 4647 GP40 1. Install locomotive event recorder

2. Install #1, 2, 3, 4, 9, 12, 15, 16 upper water jumpers

20 MOTSU 4672 GP40-2

1. Install event recorder,

2. replace #13 upper water jumper,

3. Install air compressor rebuild kit,

4. troubleshoot/repair low voltage ground on negative side,

5. Replace fan shutters,

6. replace VR card,

7. replace headlight switch

8. Replace one truck's wheelsets and turn the other truck's wheels

(#2 is small wheel with thin flange, #4 has thin flange but can be turned)

21 MOTSU 4671 GP40-2 1. Replace two Cam Bearings

2. trouble shoot arcing MU short nose plug

22 Riley 6501 3GS21B perform full (9-yr) CCB26 Airbrake service

End of Statement of Work