I hate armchair quarterbacking.....but perhaps a wing spar failure at the engine, however not a complete wing seperation? If a DC-4's like a DC-6 you only have so long to put that fire out before the spar fails. Look up Northern Air Cargo's incident near Russian Mission, AK.
I don't know of any video but I know that when I flew the DC-6 you had 2 attempts to put out an engine fire, the engine MUST be feathered before deploying the fire extinguishing agent, you had 2 tries......then about 4 minutes untill the spar failed.
Nothing against toasters (besides the smoke alarm thing) but when gals like this go "Super Viral" or whatever you want to call it; then go do somthing fantastically stupid with an aircraft.......it's a double tap to professional female pilots everywhere. We only make up 5 percent of pro pilots...
When I flew Medevac we used to play "BAC Bingo" with the Med Crew, where we'd guess the BAC of the Patient we were about to pick up pre takeoff based on the "evidence." And I thought Pilots had dark senses of humor.......