19 Dec '11, 3am

Just because shock-absorbing bearings are designed to last 50 years, your last inspection was 10 years ago?! #smrt

Detailed overnight inspections turned up more clues on Sunday of what might have gone wrong on the MRT system's critical 'third rail', which supplies electrical power to the trains. Metal contact devices - called 'collector shoes' and attached to the trains - glide below the third rail, picking up power to keep the trains running. Initial investigations after last Thursday's major breakdown indicated something had gone wrong with a section of the third rail, and the collector shoes on four trains were found wrecked. Related Links WHAT COULD HAVE GONE WRONG -- ST GRAPHICS: LIM YONG After the MRT system crashed again on Saturday, an extensive inspection was done on Sunday along 93km of track on the North-South and East-West lines. A total of 122 Land Transport Authority (LTA) and SMRT employees combed the tracks, scrutinising the third rail. Another 40 inspected the collecto...

Full article: http://www.straitstimes.com/The-Big-Story/The-Big-Story-3...

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