The burnt-out wreckage of ZK-CZQ was discovered by firefighters extinguishing a large scrub fire. The pilot and passenger had sustained fatal injuries. There were no witnesses to the accident but the available evidence suggested that, during a turn at low level in the course of an attempted precautionary landing, the left wingtip struck the ground and the aircraft cartwheeled on to its nose. No conclusive reason for a precautionary landing could be established. The possibility of an in-flight fire could not be discounted.