{
  "id": 19929877,
  "title": "What led to Kolkata-Sairang Express derailment? Main brake failure, missed safety checks under probe",
  "url": "https://urgent.news/2026/11/14/what-led-to-kolkata-sairang-express-derailment-main-brake-failure",
  "topic": "finance",
  "section": "Finance & Markets",
  "published": "2026-11-14T05:55:14.000Z",
  "source": {
    "name": "Live Mint",
    "slug": "live-mint",
    "url": "https://www.livemint.com/news/india/what-led-to-kolkata-sairang-express-derailment-main-brake-failure-missed-safety-checks-under-probe-11794634937968.html"
  },
  "original_language": "en",
  "account": "On November 11, the Kolkata-Sairang Express derailed near Guwahati, prompting a probe into the train's braking system and safety checks. The preliminary report by a six-member team indicated a malfunction in the main braking system, specifically a brake pipe (BP) angle cock. This component, crucial for applying brakes in coaches, was found isolated in the locomotive. The Railway Board has since mandated that train crews perform braking tests before operation and has initiated a safety drive from November 12 to 18 to verify compliance. The derailed train, which had stopped at Guwahati for an electric locomotive replacement, is suspected to have isolated the BP angle cock during this process. However, after the electrification of the route, this practice was abandoned. The staff member who typically isolated the angle cock was on leave when the locomotive interchange was discontinued, and upon his return, he reportedly resumed the previous procedure, unaware that the electric locomotive would continue the journey. It remains unclear who caused the malfunction or if the crew neglected safety procedures. The crew may have either overlooked mandatory braking tests or relied on an alternative regenerative braking system upon discovering the main system's failure.",
  "summary": "A preliminary probe into the Kolkata-Sairang Express derailment points to an isolated main braking system, possibly due to a communication gap among railway staff. The Railway Board has ordered safety checks across all zones.",
  "key_points": [
    "Main braking system malfunctioned due to isolated brake pipe angle cock",
    "Railway Board mandates pre-operation braking tests and safety drive",
    "Crew may have neglected mandatory tests or relied on alternative system"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}