New details emerge that could give insight into what caused the crash.

Just after 12:00 p.m. Saturday, July 18, a light experimental aircraft crashed in the Sand Canyon area of Santa Clarita, killing it’s two occupants.

According to the Los Angles County Corner’s office, the men were identified as 43 year-old Ronald Weiss of Encino and 45 year-old Anthony Crippen of Pacific Palisades.  Federal Aviation Agency records show that the plane was registered to Weiss.

Eyewitnesses described seeing the plane doing light turns when something went wrong and the plane spiraled and hit the ground nose first.

The National Transportation Safety Board has stated that witnesses reported the plane in a flat spin prior to the crash.

“Its very hard to get out of a flat spin,” said Chris Coleman, a pilot and flight instructor. “Pilots are taught in flight school how to get out of a flat spin, but there are a lot of things that could go wrong when they happen.”

According to Coleman, a flat spin is when the plane can’t sustain lift and stalls out, causing the plane to spin horizontally.

One local resident was the first on the scene, and she told KHTS that the two male passengers were dead on arrival.

Ian Gregor, a spokesman for the FAA, said the aircraft was a single-engine Lancair.

The plane was reported to be an experimental plane which, according to Coleman, is a plane that is not FAA certified.

The FAA and the National Transportation Safety Board are continuing to investigate the crash.

For additional information about the pilot of the plane click here.