Tragedy from a Swiss cheese failure - several small holes/failures all line up.
The issue of halon extinguishers versus oxygen-powered combustion producing many toxins while failing to extinguish is interesting - good that:
> Halon fire extinguishers are scheduled to be phased out of most commercial aircraft by the end of 2025.
> Halon fire extinguishers are scheduled to be phased out of most commercial aircraft by the end of 2025.