"Helicopters are water bucketing it with clean water from the Centennial Airly [Coal] mine," National Parkes and Wildlife Services Mudgee manager Lisa Menke said.

"There's no threat to assets [including homes] at the moment."

READ ALSO: Rain has done little to douse flames of concern for firefighters

Ms Menke said the 19 hectare fire was still listed as 'being controlled' and it would smoulder for a while due to the heavy peat vegetation in the area.

Meanwhile, earlier concerns that the Gospers Mountain fire had flared up near Glen Davis were unfounded.

"There's no issues close to the edge and there's smouldering away much further in," Ms Menke said.

FIREFIGHTERS are battling to gain control of a new bushfire that ignited overnight.

NSW Rural Fire Service (RFS) crews were called to Mount Airly in Capertee on Tuesday evening following reports of a fire.

Chifley/Lithgow RFS operational officer Gary Hansen said the fire was burning through remote country on top of the mountain.

READ ALSO: The aerial orchestra of water-bombing efforts

Volunteer firefighters from the Cudgegong RFS district and the National Parks and Wildlife Service remain on scene.

This 19 hectare bushfire is currently listed on the RFS' Fires Near Me sites as 'being controlled'.

READ ALSO: Soaring temps to increase NSW fire danger

At this stage the cause of this fire is unknown.

Meanwhile, aerial crews are investigating reports of a separate smoke sighting near Glen Davis to determine if it is a re-ignition of the edge of the Gospers Mountain bushfire.

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This fire is still listed as under control and is currently 512,626 hectares.

Earlier this week RFS crews said recent rainfall had done little to douse their concerns with the region still in drought and a very busy bushfire danger period already this summer.

More to come.

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