A breakdown in the back-up signaling system on the MTR East Rail Line Sunday morning was rare and it was doubtful whether it had been properly tested, Ming Pao Daily reported Monday, citing legislator Michael Tien.
The incident disrupted services for 36 minutes, the sixth such hold-up in four months. The MTR made a public announcement nearly 30 minutes into the problem, drawing criticism from legislators.
Tien, chairman of a legislative sub-committee on rail transport, said it is rare that the main signaling system and the back-up unit failed at the same time and questioned whether proper testing had been carried out.
MTR said a router in its data network that receives signals from trains was out of order while the back-up system failed to switch on automatically. The rail operator said no tests had been made on the back-up system.
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