Good PointĦĦĦ
Engines running post crash often produce post crash fires, this was a US EC135 crash in different scenario with engines running and post crash fire, NTSB determined that a kid on board the aircraft lowered colective and aircraft impacted ground.
Thomas J. Stewart, former Vashon resident, and 4 others killed in Arizona helicopter crash - Vashon-Maury Island Beachcomber
NTSB Says Five-Year-Old Girl Likely Contributed To 2010 Helicopter Accident | Aero-News Network