Alliance Aviation Services (ASX:AQZ) has cut its profit before tax guidance for the fiscal year ending June 30 to a range of AU$80 million to AU$85 million, down from previous guidance of AU$92.9 million, according to a Wednesday Australian bourse filing.

The company said its results will be impacted by aircraft damage, floods in North Queensland, Cyclone Alfred, and protected industrial action.

The company's shares fell 4% in recent Wednesday trade.