actually its a 3 person operation
1st person fights the fire
2nd person is the communicator
3rd person is the back up
Once you have put on a PBE smokehood you cant use the interphone and once you have fired off a BCF you need a smoke hood.
Twiggs with the greatest of respect i realise you are not a crew members but that is the Qantas Basic fire fighting drill for long haul crew