airplane subsequently crashing after a known in-flight fire, it happens relatively quickly. because there's an awful lot of things if it's an electrical fire, for example, you can get arc temperatures and electrical short somewhere between 7,000 degrees fahrenheit and as much as 16,000 degrees fahrenheit. the electrical component of the fire acts as an ignition source for things around it. swiss air 111 being an example. my lar insulation in the overhead had literally caught on fire after being ignited by the electrical short. the crew wasn't aware of it and they were running the cockpit smoke checklist. in every single case where there's been a fire like that, the crew's been able to communicate with air traffic control to let them know what the situation was. in miami in 1996. the cargo compartment fire. the crew didn't know the fire was there until it burned through the floor of the passenger cabin.