Tohoku shinkansen decoupled while moving, services suspended between Tokyo and Shin-Aomori

The service, Hayabusa Komachi No. 6, consists of two Shinkansen trains — a Hayabusa with 10 cars and a Komachi with seven cars — connected by the coupler. With the stoppage, Tohoku Shinkansen bullet train services between the stations were suspended for about five hours in both directions.

The Yomiuri Shimbun

The Yomiuri Shimbun

The Japan News

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This aerial photo shows the disconnected Hayabusa bullet train, seen top on the left track, and the Komachi bullet train, seen bottom on the left track, on Thursday. The trains were connected with each other and heading to Tokyo, or upward in this photo. PHOTO: THE YOMIURI SHIMBUN

September 20, 2024

TOKYO – A Tokyo-bound Tohoku Shinkansen bullet train was forced to make an emergency stop after the coupler joining two cars became disconnected while it was running between Furukawa and Sendai stations in Miyagi Prefecture at about 8:07 a.m. on Thursday.

The service, Hayabusa Komachi No. 6, consists of two Shinkansen trains — a Hayabusa with 10 cars and a Komachi with seven cars — connected by the coupler. With the stoppage, Tohoku Shinkansen bullet train services between Tokyo and Shin-Aomori stations were suspended for about five hours in both directions and resumed at 1:12 p.m.

According to East Japan Railway Co. (JR East), there were about 200 passengers on the Hayabusa and about 120 on the Komachi, with no report of passengers getting injured or becoming ill following the emergency stop. The trains did not derail, and the air conditioning systems continued to work normally.

The Komachi came from Akita Station to Morioka Station and connected with the Hayabusa. Together they departed Morioka at 7:37 a.m. The coupler became disconnected about 30 minutes later.

Apparently, this is the first time for a coupler of a Shinkansen train to become disconnected while the train was moving. JR East will inspect the train cars and investigate the cause of the disconnection.

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