What specific technical problems preceded the Tuas factory explosion?

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Specific Technical Issues Preceded Deadly Tuas Factory Explosion

The explosion at the Stars Engrg industrial plant in Tuas on February 24, 2021, which resulted in three fatalities and seven serious injuries, was preceded by a series of significant technical problems with a heated mixing machine. Investigations revealed that the machine exhibited multiple warning signs of unsafe operation over an extended period. These included instances of overheating, noticeable oil leaks, and a fire that occurred shortly before the catastrophic blast. Despite these recurring issues, the machine continued to be operated unsafely.
Machine Operated Despite Overheating and Oil Leaks

The heated mixing machine at the Stars Engrg facility experienced persistent operational issues that were indicative of underlying safety concerns. Evidence presented during the proceedings highlighted that the machine had a history of overheating and developing oil leaks. These were not isolated incidents but rather recurring problems that served as clear warning signs of potential mechanical failure or unsafe operating conditions.
Unauthorised Modifications and Inadequate Repairs

Director Chua Xing Da made critical decisions regarding the machine's operation and maintenance that compromised its safety. Instead of consulting the manufacturer, Chua opted to troubleshoot and modify the equipment himself, even after experiencing repeated technical difficulties. This included carrying out welding repairs and altering the machine’s heat insulation system without seeking expert advice from the manufacturer.
Manufacturer's Assistance Was Not Sought

The machine's manufacturer had expressed willingness to provide technical assistance to address the recurring problems. However, Chua Xing Da chose to rely on his own assumptions and incomplete understanding of the equipment, attempting to resolve issues internally. This refusal to engage with the manufacturer for expert guidance contributed to the unsafe operation of the mixing machine.
History of Unsafe Operation Despite Warning Signs

The investigations concluded that the mixing machine had been operated in an unsafe manner over a considerable duration. The persistent warning signs, such as overheating, oil leaks, and a prior fire incident, were disregarded. Chua Xing Da, in particular, is noted to have made key decisions, including the amount of heating oil to use and operating the mixer as a closed system, which exacerbated the risks associated with the machine's faulty condition.

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What specific technical problems preceded the Tuas factory explosion?

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