Test 2 Review

Question 1

What are the sub-systems for AIS?

Answer 1

Flight Inter-phone
Cabin Inter-phone
Service Interphone
Passenger Address
Passenger Entertainment
Ground Crew Call System
Cockpit Voice Recorder

Question 2

Purpose of Flight Interhpone?

Answer 2

Allows flight deck to communicate electronically with one another + ground crew

Question 3

Purpose of Cabin Interphone?

Answer 3

Allows flight deck + cabin crew to communicate

Question 4

Purpose of Service Interphone?

Answer 4

communication between COCKPIT, FA stations, and MAINTENANCE

Question 5

Purpose of Passenger Entertainment Systems?

Answer 5

Allows showing of moving/music

Question 6

Purpose of ground crew call system?

Answer 6

Allows flight crew + ground crew to attract each others attention

Question 7

What type of communication systems are inter-phone systems?

Answer 7

Hard Wired

Question 8

What are the 2 types of Interphone systems?

Answer 8

Flight + Service

Question 9

Who gets access to the Flight Inter phone system?

Answer 9

Available for each position in the cockpit, and possibly at the External Power Panel + Avionics Bay

Question 10

At what scenario would you use the Flight Interphone?

Answer 10

During excessive noise or when flight crew wears O2 masks

Question 11

MEL’s identify Flight Interphones as?

Answer 11

A “NO GO” item

Question 12

Cabin + Maintenance Interphones are?

Answer 12

Part of the Service Interphone

Question 13

What are some the issues of Maintenance Interphones?

Answer 13

Contamination + located at high vibration areas

Question 14

What does the MEL say about Service Interphones?

Answer 14

Can be “INOP” as long as PA System is serviceable

Question 15

Purpose of PA system?

Answer 15

Enables the broadcasting of audio messages and announcements in the passenger cabin

Question 16

PA system order of priority is?

Answer 16

1. Cockpit
2. FA Stations
3. Pre-Recorded Announcements
4. Entertainment

Question 17

Where is the “Chime Gen.” located?

Answer 17

PA Amps

Question 18

At what circumstances are chimes heard over the PA?

Answer 18

Crew Call, Lav/PA call, Ordinance Signs change of status

Question 19

In “Auto” mode, what are seat belt signs controlled by?

Answer 19

Flap position

Question 20

How can PA volume control be adjusted?

Answer 20

Maintenance on amp, oil pressure, cabin depressurization

Question 21

PA audio is supplied to the cabin by what?

Answer 21

Sub-multiplexers

Question 22

Crew Call System provides?

Answer 22

Chimes + Lights, horn for Ground Crew at Nose Wheel Well

Question 23

What does Multiplexing provide?

Answer 23

Weight saving

Multiple channels of audio through 1 wire

Question 24

Video/ Audio are injected into the?

Answer 24

Main MUX

Question 25

Main MUX feeds?

Answer 25

Sub MUX at each passenger cabin

Question 26

Sub MUX feeds?

Answer 26

several columns of Decoder/Encoder units

Question 27

Decoder/Encoder units typically feed?

Answer 27

2-4 Passenger Control Units

Question 28

What is the purpose of an ELT?

Answer 28

Automatically transmit a radio signal which Search and Rescue crews use to locate crash site

Question 29

Frequency of Operation of ELT?

Answer 29

121.50 MHZ, 243.00 MHZ, 406 MHZ | VHF line of sight transmission

Question 30

Modes of Operation for ELT?

Answer 30

ON/OFF/AUTO or ON/OFF/ARM | In auto/arm mode, a “G Switch” will activate transmitter upon impact

Question 31

What are the Components of an ELT System?

Answer 31

Transmitter at crash survivable area Antennas Note the Direction of Flight Arrow

Question 32

Steps when testing an ELT?

Answer 32

Tune VHF Com to 121.50 MHZ Turn “ON” for a few seconds, and listen for audio on VHF Com Only test during the first 5 minutes of the hour If possible, notify ATC prior to testing

Question 33

Purpose of CVR?

Answer 33

records cockpit audio for the purpose of accident/incident investigation

Question 34

How many channels and what audio tools used for CVR?

Answer 34

Four channels are used to record audio from an “AREA MICROPHONE” and the “AUDIO SELECTOR PANELS

Question 35

A CVRs continuous loop tape will record for?

Answer 35

30min

Question 36

CVR bubble memory chip will record for?

Answer 36

120min

Question 37

What does the control head contain and where is it located?

Answer 37

Contains "cockpit area mic" and located on the overhead instrument panel + TEST + Bulk Erase

Question 38

CVR Bulk Erase activation?

Answer 38

on the ground (WOW) | parking brake in 'Set"

Question 39

Testing the CVR?

Answer 39

on control head + recorder unit | use headphones for quality confirmation

Question 40

CVR location?

Answer 40

Survivable area, aft

Question 41

Purpose of FDR?

Answer 41

The FDR on board the aircraft records many different operating conditions of the flight.

Question 42

What do you use to record FDR?

Answer 42

Old: Foil tape + stylus New: Digitial 25hrs

Question 43

How is FDR activated?

Answer 43

Engine oil pressure | WOW sensing

Question 44

CVR and FDR are both equipped with?

Answer 44

ULB for overwater accident

Question 45

This equipment is also known as a "pinger"?

Answer 45

ULB

Question 46

ULB frequency?

Answer 46

37.5KHz

Question 47

ULB depth transmission?

Answer 47

14000-20000 feet

Question 48

Battery life of CVR/FDR?

Answer 48

6 years on the shelf | 30 days in operation

Question 49

Are flight and service intercom interchangeable?

Answer 49

Yes they are, it is a box amp in the Avionics bay

Question 50

If the main multiplexer dies what happens?

Answer 50

no one will be able to hear the cockpit

Question 51

How often to calibrate the ELT?

Answer 51

Once a year

Question 52

Advantage of 406MHz compared to 121.5MHz?

Answer 52

Can send more info, anywhere (SARSAT)

Question 53

What gathers all of the info for the FDR?

Answer 53

FDAU