You may notice some low flying aircraft at Lismore aerodrome soon when the Civil Aviation Safety Authority (CASA) conducts flight path safety checks there.

On February 1 and 2 CASA will be conducting flight path safety checks to make sure instrument procedure flight paths at the aerodrome operate safely.

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CASA announced that a twin-engine Cessna Conquest aircraft will be used to carry out the safety checks within an area up to 35 kilometres from the aerodrome.

"Low-level flying is an essential part of the safety exercise, with the aircraft down as low as several hundred feet at times," a spokesperson said.

"Local residents may notice an uncommon flying pattern, but this is to make sure obstacles are accurately marked on charts and no new obstacles exist.  Obstacles can be towers, trees, masts or buildings that can be a danger to aircraft."

The Civil Aviation Safety Authority requires aerodrome flight path safety checks to be carried out every three years to maintain a high level of air safety at all aerodromes.

If poor weather or other factors do not allow the safety checks to go ahead on the planned days they will be carried out as soon as possible.

CASA has contracted the operation of the special check flights to Corporate Air, one of Australia’s largest and longest established aviation services providers.

Lismore aerodrome is one of seven aerodromes which will have the checks carried out. The others are Ballina Byron Gateway, Taree, Port Macquarie, Kempsey, Coffs Harbour, and Grafton.