The Nowra-based AW139 helicopter arrived in Ballina on Sunday ahead of the forecast more heavy rain.

CHC Helicopters is a civilian operation based at Albatross, which provides aviation emergency response including specific search and rescue capabilities for the Royal Australian Navy's Nowra helicopter fleets.

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The Nowra deployment includes two pilots, two aircrewmen and an engineer.

Earlier this month, as the floods ravaged large parts of NSW, but the North Coast in particular, a number of CHC aircraft from East Sale, Williamtown and Amberley were part of the flood efforts, while the Nowra-based aircraft was also put on standby.

A number of ADF aircraft were also part of that flood effort, with a Seahawk Romeo helicopter from 816 Squadron at HMAS Albatross involved in a dramatic flood rescue in western Sydney, airlifting a mother and her two children to safety from their flooded home at Werrington, in between Kingswood and St Marys.

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