A320:Smoke Procedure

[sonicbum]

Originally Posted by dream747

Right after LAND ASAP red in the procedure, it says “if perceptible smoke apply immediately” the procedure.

Seeking some opinions on how do you guys interpret “perceptible smoke”. Does invisible smell/fumes that cause physiological effects considered as perceptible smoke this case? Or does Airbus refer this as any kind of fumes/smoke/smell?

FCTM
The smoke or fumes are perceptible if the flight crew can confirm it visually or by smell.