RCDR panel

Question 1

Why is the GND CTL pushbutton selected to ON during preflight?

Answer 1

To record preflight activities in the cockpit.

Question 2

If the pushbutton was not selected ON, how would the system work in automatic mode?

Answer 2

• ON for 5 minutes after electrical power is supplied to the aircraft.
• At least one engine is operating, stops 5 minutes after last engine shut down.

Question 3

What allows the cabin PAs to be recorded?

Answer 3

ACP 3 PA volumne knob out and in the 12 o’clock position.