Hazards in Your Home - Federal Pacific Stab-Lok Breakers
The circuit breakers in your electric panel are supposed to stop fires, not start them.
But millions of families across the country and in the Tri-State are living in homes with potentially defective breakers. These breakers are in homes between 25 and 60 years old. When too much electric current is fed to a defective circuit breaker there can be sparks, smoke, flame, heat; everything necessary to start a fire.
Source WKRC Cincinnati