Communications

Question 1

Describe the cockpit indications of an incoming cabin or ground call

Answer 1

1. Ground - when PILOTS CALL button (External Electrical Power Recepticle Panel) is pushed, a CHIME sounds in cockpit
2. Cabin - ATTND CALLING/RESET switch light illuminates simultaneously with chime when flight attendant pushes handset PLT switch light. Also resets switchlight when pressed

Question 2

How do you activate/deactivate the oxygen mask microphone

Answer 2

1. Activate - position the MASK/BOOM switch on the audio control panel in the MASKS position
2. Deactivate - put it in the BOOM position

Question 3

Which microphones can be used for Interphone/PA communications to the cabin (3)

Answer 3

1. Mask or Mike Boom
2. Hand mic
3. Handset

Question 4

What are the locations of the three audio panels in the cockpit?

Answer 4

Captain’s
First officers
And aft overhead panels

Question 5

What’s the location and purpose of the Maint. Interphone switch?

Answer 5

Located on the aft overhead panel

Positioning switch to ON connects all maint. Interphone jacks to the service Interphone