Communications

Question 1

Describe the Flight Interphone system

Answer 1

Permits communication between
-Captain
-First Officer
-3rd occupant
-Ground personal connected at the external power panel near the nose gear

Requires use of the INT (transmittion key and reception knob) controls on the Audio Control Panel (ACP)

Question 2

Describe the Cabin Interphone System

Answer 2

-Permits communication between between flight deck and cabin
-Requires the use of the CAB (transmission key and reception knob) controls on the ACP

Question 3

Describe the Service Interphone System

Answer 3

-Permits communication between the flight deck and the exterior maintenance jacks (excluding the external power panel)
-Requires the use of the CAB (transmission key and reception knob) controls on the ACP

Question 4

What is the purpose of the Radio Management Panels (RMPs)

Answer 4

Used to select and tune all communication radios, SELCAL and standby navigational radios

Question 5

What is the purpose of the Audio Control Panels (ACPs)

Answer 5

-Selection of radios and inter phone system for transmission and reception
-Control of reception volume
-Transmission of the public address system
-Filtering of Morse code signals from NAVAID reception

Question 6

Function of each position of the INT/RAD switch

Answer 6

INT- Allows hands free (hot mic) transmission of the flight interphone system through a headset boom or oxygen mask inter phone.
Neutral- Requires the use of a sidestick trigger for transmission
RAD (spring loaded)- allows transmission for the selected transmission key

Question 7

Recall the function of the AUDIO SWITCHING selector

Answer 7

-Permits selection of ACP 3 by either pilot in the even their respective ACP has failed
-When CAPT 3 of F/O3 has been selected, “AUDIO 3 XFRD” appears on the memo section of the E/WD

NOTE Use of ACP 3 does not affect either RMPs operation

Question 8

Indications when receiving a transmission from SELCAL

Answer 8

CALL flashes in amber within the respective communication radio transmission keys (VHF 1/2/3 or HF 1/2
Buzzer sounds on flight deck

NOTE pressing RESET key on the ACP will extinguish a flashing CALL MECH or ATT light

Question 9

Indications when receiving a transmission from Mechanic ground call from the external power panel

Answer 9

MECH flashes in amber within the INT transmission keys
buzzer sounds on the flight deck
Light goes off after 30 seconds if not reset

NOTE pressing RESET key on the ACP will extinguish a flashing CALL MECH or ATT light

Question 10

Indications when receiving a transmission from Cabin Crew

Answer 10

ATT flashed in amber within the CAB transmission keys
Buzzer sounds in the flight deck
Light goes off after 60 seconds if it is not reset

NOTE pressing RESET key on the ACP will extinguish a flashing CALL MECH or ATT light

Question 11

Describe the two methods of making a Public Announcement (PA)

Answer 11

Using the handset mounted at rear of the center pedestal
Pressing and holding the PA transmission key on the ACP, and speaking into a headset boom or oxygen mask microphone

Question 12

Explain the controls on the overhead CALLS panel
ATTND ADV pb

Answer 12

We do not use

Question 13

Explain the controls on the overhead CALLS panel
MECH pb

Answer 13

-COCKPIT CALL light illuminates on the external power panel
-External horn sounds at the nose of the aircraft

Question 14

Explain the controls on the overhead CALLS panel
FWD pb

Answer 14

High/Low chime sounds at the forward section of the cabin and CAPTAIN CALL appears at the forward flight attendant panel

Question 15

Explain the controls on the overhead CALLS panel
AFT pb

Answer 15

High/Low chime sounds at the forward section of the cabin and CAPTAIN CALL appears at the aft flight attendant panel

Question 16

Explain the controls on the overhead CALLS panel
EMER pb

Answer 16

-ON in white and CALL in amber flash within the pb
-High/low chime sounds three times throughout the cabin
-EMERGENCY CALL appears on all flight attendant panels

Question 17

Explain the function of the controls on the RCDR panel
GND CTL pb

Answer 17

-ON (blue)- Cockpit voice recorder (CVR) and Digital Flight Data Recorder (DFDR) are actively recording.
-AUTO (lights out)- the CVR and DFDR automatically start recording with the first engine start

Question 18

Explain the function of the controls on the RCDR panel
CVR ERASE button

Answer 18

Erases the CVR tape if the button is pressed for a brief time provide;
-aircraft is on the ground
-parking brake is on

Question 19

Explain the function of the controls on the RCDR panel
CVR TEST button

Answer 19

Tests the CVR provided
-GND CTL pb is selected ON
-Parking brake is set
-Low frequency tone is heard throughout the flight deck loudspeaker which indicates a successful test