203.1.15 Mayday Ops

Question 1

Situations to call for mayday include

Answer 1

Injured or in need of assistance
Lost/disoriented
Trapped/entangled and unable to remove self
No response to par after 2nd attempt

Question 2

Situations to call for EMERGENCY

Answer 2

Collapse of Wall or roof
Potential Collapse that needs investigated 
Backdraft or explosion 
Flashover
Holes in floor
Mussing stairs
Open elevator shafts