Study Guide-Circuit Breaker Panel

Question 1

What is the difference between a green CB and a black CB?

Answer 1

• Green CBs are monitored by the FWS. If a green CB is out for more than 1 min, then an ECAM will be generated.
• Black CBs are not directly monitored by the FWS. In this case the component protected by the black CB is monitored directly by the FWS.

Question 2

What is the significance of CBs with the red caps?

Answer 2

WTB (Wing Tip Brakes) CBs. We never reset these CBs.

Question 3

Explain the Allegiant CB reset policy.

Answer 3

• Do not reset a tripped CB in flight.
• On the ground: only reset a CB under the direction of maintenance, only ONCE.
• NOTE: Captain can exercise emergency authority and reset a CB if necessary for the safe continuation of the flight. Always allow a 5 min cooling period and ensure a logbook write up has been completed.