been a long time since I did fire training as a young fella
Me too and as far as I knew water on brake fires was a no no until I was involved in a V1 abort at Haneda many years ago. We taxied off the active and all main wheels deflated with brakes glowing red hot which the Japanese fire crew promptly doused with water. I got somewhat upset and filed a report but in reply it was pointed out that water mist was the suitable extinguishing agent for brake fires. I am presuming of course that the QF wheel/wheels were deflated?