NEW DELHI (Reuters) - An explosion of hot gas at a boiler at NTPC's Unchahar power plant last year that killed 45 workers was the result of an "error in judgement" by some of the plant's most experienced operators, according to an internal report on the state-run electricity producer's biggest disaster.
The plant's Head of Operation, Head of Ash Handling Maintenance and Head of Boiler Maintenance - each with 28 years of experience - made a decision not to shut down a 500-megawatt (MW) boiler at Unchahar to clear a buildup of ash prior to an overpressurisation in the unit that caused the gas release, said a summary of the report reviewed by Reuters.
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