Just found this statement in the front of my new QRH. I guess that answers the question about going below minimums.
NG
'If a smoke, fire or fumes condition becomes uncontrollable, the SMOKE, FIRE OR FUMES checklist directs the flight crew to consider an immediate landing.
“Immediate landing” implies immediate diversion to a runway. However, the
smoke, fire or fumes situation may be severe enough that the captain should consider an overweight landing, a tailwind landing, an off-airport landing or a ditching.'
Does anyone know why the classic does not have this statement in the front of the QRH. Also there is no Smoke,Fire or Fumes checklist??