INS Arihant: $3 billion Indian submarine is still out of order


INS Arihant, the first nuclear missile submarine of India is out of commission from 2 years.

Indian submarine INS Arihant worth $2.9 billion is still out of order due to a minor human error. However, it went out of commission a few days it was included in the fleet of Indian Navy.

According to sources, one of the vessel’s external hatches remained unlocked when it submerged, which allowed water to flood into the submarine’s propulsion compartment and destroy the equipment.

“Water rushed in as a hatch on the rear side was left open by mistake,” the report revealed. Since then, the Indian submarine has been undergoing repairs and clean up.

Besides other repair work, the authorities are getting many pipes cut open and replaced. While it’s hard to tell how major a mess-up this is, according to a key technical expert:

“Indian authorities ordered the pipe replacement because they likely felt that pipes exposed to corrosive seawater couldn’t be trusted again, particularly pipes that carry pressurized water coolant to and from the ship’s 83 MW nuclear reactor.”

For context, a submarine assigned to Britain’s Royal Navy narrowly avoided a complete reactor meltdown in 2012 after the power sources for its coolant system failed. The incident did not only cause an international embarrassment but also raised strategic concerns for the Indian Armed Forces.


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