COMPAMIR
High-Purity Fact Pipeline
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High-Purity Fact Pipeline
West Japan Railway Co. (JR West)
Japan
2026-06-22
Verified: June 22, 2026
"JR West announced the retirement of the 500-series Shinkansen by July 2027. The iconic 'Doctor Yellow' diagnostic train will also be retired in January 2027. No direct successor for the Doctor Yellow is planned, with N700S trains taking over fault-finding duties."