Glad everyone survived. I’m pretty sure it’s mandatory in Europe (and Canada?) that all airliners have built-in engine fire extinguisher bottles. These are routed inside the engine itself and there’s a switch inside the cockpit that activates them. The switch shuts off fuel to the engine and sprays it. If US airliners are flying around with no means of combatting an engine fire in flight (implied here since they had to wait for outside help) then that is very concerning.