Not just disposed, but disposed in multiple locations:
> two weeks after the drama he and a friend winched the wreckage out of the forest with a helicopter, [...] Over the next few days, he cut up the plane into small pieces, and dumped the parts in trash bins in and around Lompoc City Airport. [...] In a plea agreement, Jacob admitted he had intended to obstruct federal authorities when he disposed of the wreckage
Worse, he reported the incident to the FAA, who asked him for the location and told him not to disturb the wreck (they told him more than once). He then disposed of the plane and continued telling the FAA/NTSB he didn't know where it was.