page_title: TWR 70-000 series
section_title: 209-3100 series conversions
hierarchical_section_title: TWR 70-000 series / History / 209-3100 series conversions
caption_attribution_description: English: JR East 209-3100 series EMU set 71 at Haijima Station in Akishima, Tokyo, Japan 日本語: JR東日本209系電車
context_page_description: The Tokyo Waterfront Area Rapid Transit 70-000 series is a DC commuter electric multiple unit train type operated in the Tokyo area of Japan by the Tokyo Waterfront Area Rapid Transit. The train was built by Kawasaki Heavy Industries and first entered revenue service in 1996. Its design is based on the 209 series.
context_section_description: Six former 70-000 series cars were converted in 2004 and 2005 to become 209-3100 series EMUs for use by JR East. The subsequent identities of these cars are as shown below. (The former car numbers were reused when other spare cars were renumbered.)
caption: JR East 209-3100 series set 71, April 2005
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