Police are trying to find a GoPro camera that they believe was on the ultralight plane that crashed at Long Jetty last week.
Last Wednesday morning the aircraft crashed into Tuggerah Lake.
A 64-year-old man and a 57-year-old woman died during the accident.
Investigators would like to speak to anyone who witnessed the incident, may have mobile phone vision, or witnessed the incident.
Police also believe there is still a chance that the GoPro camera on the aircraft may still wash up and are hoping to recover it.
