1. CALLS

Question 1

MECH

Answer 1

Pressed (and held):

COCKPIT CALL lights up blue on the external power panel in the nose L/G bay, and an external horn sounds.

Released:

The external horn stops sounding.

COCKPIT CALL remains lighted on external power panel. The ground mechanic can extinguish it by pressing the RESET button on the external power panel.

Question 2

FWD & AFT

Answer 2

When pressed, the following aural and visual alerts will trigger in the cabin:

Two lights come on in pink on the FWD or AFT area call panel, as applicable.
On the Attendant Indication Panel (AIP), the CAPTAIN CALL message appears and a light comes on green.
A high-low chime sounds in the FWD or AFT section of the cabin, as applicable.

Question 3

EMER

Answer 3

When pressed, the following aural and visual alerts will trigger in the cabin:

Two pink lights flash on all area call panels
The “EMERGENCY CALL” message appears on all AIPs
A high-low chime sounds three times, on all of the loudspeakers
On the cockpit CALLS panel, the ON light flashes in white and the CALL light flashes in amber
The following aural and visual alerts will trigger in the cockpit, when an emergency call is made from the cabin to the cockpit:

On the EMER pushbutton: The ON light flashes in white, and the CALL light flashes in amber
The ATT lights will flash on all Audio Control Panels (ACPs)
Three buzzers will sound consecutively (for approx. three seconds each) The cabin call system will reset, when the cabin crewmember hangs up the handset.
The cabin call system will reset when the cabin hands up the handset.