Hand-Held Fire Extinguishers

I'm going to jump between subjects to keep things interesting, but I'll tag each post so they are searchable.  However, in keeping with the tradition of one of my best ground school instructors, we're going to start with Air Law.  Though it is arguably one of the less exciting subjects, there is no denying that knowledge of Air Law is essential.   So without further ado...

Remember: 704 is for Commuter Operations; 705 is for Airlines, and the requirements are different.  

CAR 704.83 says that you need at least one hand-held fire extinguisher readily accessible in the passenger compartment if you are flying with passengers.

CAR 705.93 is about 7 paragraphs long, and details quantity, location, type, and demarcation requirements.  Key take-away: in addition to one hand-held fire extinguisher in the flight compartment, there needs to be 2 or more in the cabin, based on the number of passenger seats (regardless if there are passengers in them or not):
(a) 60 or fewer passenger seats, two extinguishers;
(b) 61 to 200 passenger seats, three extinguishers;
(c) 201 or more passenger seats, one extra extinguisher for each additional unit of 100 passenger seats.
You also need one in each of the Class E cargo compartments and isolated galleys, if so equipped. 

So on a Dash-8 Q400 with seating for 72 passengers, a total of 4 hand-held fire extinguishers would be required (1 in the flight compartment and 3 in the cabin).