Comm

Question 1

COMM_001

Describe the cockpit indications of an incoming cabin or ground call:

Answer 1

• Ground: When PILOTS CALL button (External Electrical Power Receptacle Panel) is pushed, chime sounds in cockpit. *** Chime only
• Cabin: ATTND CALLING / RESET switchlight illuminates simultaneously with chime when flight attendant pushes handset PLT switchlight. Resets switchlight when pushed. *** Chime plus light

Question 2

COMM_004

Understand how to activate/deactivate the oxygen mask microphone:

Answer 2

• To activate the oxygen mask mic, position MASK/BOOM switch on Audio Control Panel in MASKS position.
• To deactivatethe oxygen mask mic, position MASK/BOOM switch on Audio Control Panel in the BOOM position.

Question 3

COMM_005

Recall which microphones can be used for Interphone/PA communications to cabin:

Answer 3

• Mask or Boom mic
• Hand mic
• Handset

Question 4

COMM_006

Give the locations of the three audio panels in the cockpit:

Answer 4

An audio selector panel is installed at Captain’s, First Officer’s, and aft overhead panels.

Question 5

COMM_007

Explain the location and purpose of the Maintenance Interphone switch:

Answer 5

Maintenance Interphone switch is located on aft overhead panel. Positioning switch to ON connects all maintenance interphone jacks to service interphone.