MORE RELATED DETAILS / FACTS
Here are a few points to consider about the above video, and the mistakes Sheriff Dupont and Pat Walsh made during their investigation:
1) First, how did Dianne sustain a right broken collar bone and fracture to her neck? Neither Sheriff Dupont nor Pat Walsh ever address this. Could it be because she was wearing a shoulder harness? How else could those injuries be explained?
2) If she was wearing a shoulder harness and managed to disconnect the shoulder harness from her waist seatbelt, then that would also explain why the belt buckle was flipped around, instead of some ridiculous conclusion that the seatbelt flipped around by itself because it was loose, as Pat Walsh suggested. The photo clearly shows the hole in the inverted waist seatbelt where the shoulder harness connected to.
3) Although the buckle wasn’t jammed, there was not enough time for her to disconnect the shoulder harness, and then unbuckle the seatbelt. Remember, once the plane wheels hit the water and the plane flipped over, it floated for only 15-20 seconds before it submerged below the water surface.
4) If, David Oliver, the owner of the aircraft, had upgraded the seatbelt to a single release mechanism that released both the shoulder harness and the waist seatbelt at the same time, then there would have been a very good chance that Dianne could have set herself free in those few seconds.