Below is a statement given by "Boeing" in relation to "the use" of circuit breakers by flight crews (during the 2004 Flight Operations Symposium, May 9 – 12, 2004, Bell Harbor Convention Center):
Flight crews are not trained in circuit breaker location or use. In many cases, circuit
breakers are installed in different locations on different airplanes within a model. Circuit
breakers are not designed to be switches; this impacts life expectancy of the circuit
breaker. The flight crew is not always in a position to easily reach circuit breakers. In
addition, the circuit breakers themselves are not necessarily clearly and uniformly
labeled. Boeing is also concerned that if the crew becomes habitualized to using circuit
breakers they will eventually use them in a situation they should not use them.