My cousin's Mooney M20D went down near Revekstoke BC, Canada, on November 25, 2017. The military has stopped the search and the family is left to do everything we can to bring my cousin (the pilot) and his girlfriend home.  We are hearing mixed stories about whether or not a magnetometer may help locate the aircraft.  I have read that the Mooney did have steel components.  I am looking for opinions regarding the viability of this search option.  We have a couple of high probability search areas