CSX outage halts interchange with other Class I railroads as PTC stays up

Lead

On Oct. 27, 2026 a technology outage began at CSX Transportation’s systems, and as reported on Oct. 30 the outage has halted CSX’s ability to complete interchanges with other Class I railroads. The Jacksonville, Florida-based railroad said its train dispatching systems and positive train control (PTC) remained operational while other CSX systems experienced failures. CSX told Jacksonville TV station WJXT that its security team ruled out a cyberattack and found no data breach; the company did not disclose the root cause or a timeline for full restoration.

Verified facts

- Event start date: Oct. 27, 2026 (outage began).

- Report date: Oct. 30, 2026 (publication date of the source article).

- Location: CSX Transportation headquartered in Jacksonville, Florida; impacts reported across CSX’s network.

- Systems status: Train dispatching and positive train control (PTC) remained working according to the report; other CSX systems experienced failures that limited normal operations.

- Interchange impact: CSX said it currently cannot complete interchanges with other Class I railroads.

- Limited traffic flow: A limited flow of traffic continued through the Belt Railway of Chicago and Conrail using those railroads’ own paperwork and processes.

- Security assessment: CSX told WJXT that its security team had ruled out a cyberattack and found no data breach.

- Communications: CSX said it is in regular contact with other railroads, the Federal Railroad Administration (FRA) and the Surface Transportation Board (STB).

- Restoration: Restoration is proceeding system by system; not every CSX function was restored as of Wednesday (per the report). CSX did not provide a timeline for full restoration.

- Operational effects: Calling crews to trains now relies heavily on manual work, contributing to slower operations.

- Confined failure: CSX said the failure is confined to its own systems and that partners’ and customers’ systems have not been affected, while noting limited ability to exchange data and information with them.

- Financial and contract figures: Not publicly disclosed.

Organizations and responsibilities

- CSX Transportation (Jacksonville, Fla.): Owner/operators of the affected systems; reported system failures began Oct. 27 and communicated to media that dispatching and PTC remained operational, that its security team found no evidence of a cyberattack or data breach, and that restoration is proceeding system by system. CSX stated it cannot complete interchanges with other Class I railroads and cited increased manual work to call crews.

- WJXT (Jacksonville TV station): Media outlet to which CSX gave the cited statement that its security team ruled out a cyberattack and found no data breach.

- Belt Railway of Chicago and Conrail: Reported as continuing a limited flow of traffic with CSX using their own paperwork and processes; the article does not state contractual terms or capacity limits.

- Federal Railroad Administration (FRA) and Surface Transportation Board (STB): Reported by CSX as agencies with which the railroad is in regular contact; no further actions or directives are described in the source.

- Norfolk Southern: Mentioned in the article as background context referencing a 2023 outage that Norfolk Southern said was traced to a vendor data storage software defect; the 2023 incident is reported context, not part of the current event.

Operational and commercial context

- Reported operational impact: The outage has interrupted CSX’s interchange capability with other Class I railroads, which is a discrete operational function separate from dispatching and PTC, and CSX reported reliance on manual processes to call crews and limited interchange routing through Belt Railway of Chicago and Conrail.

- Data exchange and customer impact: CSX stated partners’ and customers’ systems were not affected, but CSX’s ability to exchange data and information with them is limited; the source does not provide details on shipment backlogs, commodity types affected, or financial impacts.

- Restoration and timing: CSX said restoration is occurring system by system but did not provide a timeline for when full functionality and normal interchange operations will resume; the source does not disclose repair vendors, costs, or schedule.

- Comparative context: The article references a 2023 Norfolk Southern outage as precedent reporting; Norfolk Southern had reported that the prior outage traced to a vendor software defect and that there was no indication of unauthorized access. The source presents that as background reporting only.

Sources

- https://www.railway.supply/csx-outage-halts-interchange-with-other-class-i-railroads-as-ptc-stays-up/ (Railway Supply)

- Source organization: Railway Supply

Disclosure

This RailZoom Intelligence Brief is an original synthesis based on the cited public source. Details not confirmed by a first-party announcement are identified as reported information. For overseas project development or industry intelligence cooperation, contact RailZoom.