Man in hospital after NSW plane crash

An elderly pilot is in hospital in a serious condition after crashing his plane on the NSW far north coast.

The Ballina man, 73, was flying alone in his ultra light plane when it appeared to stall before crashing into a property at Knockrow, near Lennox Head, on Monday.

He was taken to Gold Coast Hospital with multiple injuries and is in a serious condition.

Police have established a crime scene at the crash site which will be examined by forensic specialists.