Chapter 10 - Section 7: Miscellaneous cabin systems

Question 1

There are hidden/guarded switches in the galley and attendant areas, what happens when these are activated?

Answer 1

DEU B sends a signal to the active director

Active director then sends a signal to:

• cockpit aural and visual indications
• AIP (in area where activated)
• ACP (in area where activated)

Question 2

What happens on operation of the cockpit alert switch?

Answer 2

Director activates the AIP and the ACP through DEU B and through DEU A initiates a special chime through the loudspeaker system which is created in the PISA

Question 3

What does crew signalling allow the cabin staff to do?

Answer 3

Communicate the cabin’s ready status to the flight deck for take-off and landing

Question 4

What does the sterile cockpit switch allow?

Answer 4

Prevents the aircrew from being disturbed and can only be reset by the cockpit switch

Question 5

Where can an evacuation command be initiated from?

Answer 5

• FAP
• Mini FAP
• AAP
• Cockpit

Question 6

What happens when an evacuation command has been initiated?

Answer 6

• An emergency tone is broadcast through the loudspeakers
• AIPs display ‘EVACUATION ALERT’ and their red light will flash
• On the ACPs, the pink LED will illuminate
• On the AAP, the EVAC RESET switch will flash
• Outputs to disable ‘door opening and slide armed’ alert
• Input to the IFE to inhibit audio and video

Question 7

What happens when a PAX call is initiated?

Answer 7

• The director sends a signal via DEU A to activate the related overhead call light
• A high chime is announced
• ACP and AIP indicate origin of call