777 avionic
Review PH6 77-200 Avionics Phase
· What is the name of the system that is used to convert from 429 to 629?
System card file ( ASG )
There are two systems card files in the airplane, left and right.
The system card files contain:
* Power supply cards (4 in each)
* ARINC signal gateway (ASG) cards (2 in each)
* ARINC 429 system cards (8 in Left)
* ARINC 429 system cards (9 in Right).
Purpose
ARINC 629 signal gateway (ASG) cards change data format
between ARINC 429 and ARINC 629. The ASG cards move data
between the LRU interface cards in the left and right systems
card files and the left and right systems ARINC 629 buses. The
ASG cards also move data between the forward and aft cargo
smoke detectors and the left and right systems ARINC 629
buses.
· How many ASG card files?
2 card files left and right.
A left and right system cardfile integrate many systems cards.
The systems cardfiles have many data inputs and outputs. The
left and right system cardfiles communicate on the left and right
systems ARINC 629 buses.
Both systems cardfiles have two ARINC signal gateway (ASG)
cards. One ASG card in each cardfile connects to the left ARINC
629 bus and one card in each cardfile connects to the right
ARINC bus.
· What is the system that directly supplies data to ASG card?
Smoke detector
The ASG cards also move data between the forward and aft cargo
smoke detectors and the left and right systems ARINC 629 buses.
· What is the power supply for the card file?
28volt DC
· In which card file is the APU fire detection card file fitted?
Left
· Where is the location of the card file?
MEC left tunnel and right tunnel
· Are the signal gateway cards interchangeable?
Yes
· If you want to set the time at the clock to your preference, which do you select?
Manual
· UTC time comes from?
AIMS from GPSS or MMR
· The sweep second hand reads in?
Seconds
· What is the maximum measured that the ET can show?
99 hours 59 minutes
· If the selector is in manual and the clock just powered up, what Is the reading?
00
· Clock requires what power supply?
28V DC
· What switch is duplicated in the pilot’s clock?
Chronograph switch
· Flight data recorder requires what software in aims?
DFDAF
· DFDAF resides in which AIMS?
Both
· What is the name of the CPM that hosts DFDAF?
CPM/COMM
· What signal is used by DFDR?
ARINC 717
· Location of DFDR?
E7
· When does DFDR gets power?
As soon as engine starts on ground
· What is the memory storage assembly in DFDR called?
CSMU (crash survivable memory unit)
· What is the device that gives out homing signal?
ULD (underwater locating device)
· What is the life of ULD?
30 days if submerged in water or 6 years if it’s not used
· What triggers the ULD to start?
Water operated switch
· Which AIMS is ACMS located?
Left AIMS only
· What are the system the ACMS collects data from?
ECS, APU and both engines
· Where is the TCW displayed?
On the PFD
· Highest TCW message is?
WIND SHEAR
· What parameter does the compass rose display?
Heading
· Where is the compass rose located?
Bottom of the PFD
· What display is located at extreme right of PFD?
VSI
· Which ND mode cannot be used centered display?
Plan mode
· During landing, which mode does the pilot usually select?
Approach
· Which cabin services system component is used by cabin attendants to communicate with each other?
Cabin interphone system (CIS)
· What control will the cabin attendants use to turn on/off the cabin light?
CSCP or CACP
· How many channels are recorded in CVR?
4
· How many minutes is used to record?
120 minutes
· Where can an external mic be placed to listen to the cockpit?
At P40
· Power supply for CVR?
115V AC
·
777 Phase 6 Avionics
FDR 31-31-00
1. 25 hours recording time
2. Uses ARINC 717
3. Location at aft side galley (E7)
4. Left AIMS cabinet is master; meaning data sent to the FDR comes from here
5. Battery life is 6 years. After 6 years have to remove the battery.
ACMS 31-35-00
1. Can downlink to satcom or EICAS
2. Can be downloaded to diskette
3. Analyses aircraft performance
4. ACMS software is only on left AIMS cabinet
PDS 31-61-00
· Consist of EFIS and EICAS.
Voice Recorder 23-71-00
· Located at E7 rack
· Power for CVR is 115VAC left transfer bus
· Keeps the last 120 minutes of audio
· Recording medium is solid state
Electronic Flight Bag 46-11-00
· Display unit is touch sensitive
· But also has soft keys at the sides just in case touch screen is ineffective
· Uses 2 electronic units (EU) instead of CPM/GG
· The video function shows the security camera feed outside the cockpit
· EU has two operating system (OS)
· When power is supplied to EU, the DU (display unit) gets it as well
· Power button will only turn off the backlight, not the EU
Flight Deck Entry Video Surveillance System 27-75-00
· 3 cameras; cockpit door, left galley and right galley
· Cameras are of infra-red type
· Power supply to the CIU comes from 120VAC and the camera is 12VDC
Static and Total Air System 34-11-00
· Standby airspeed indicator requires pitot and static
· Standby altimeter requires static port only
· Standby air data module converts the signal to ARINC 429
· Pitot-static/Air Data Standby Instruments are interchangeable
· The standby airspeed indicator and the standby altimeter is interchangeable. The program pin determines the function
· Pitot probe heating is 115VAC on ground (engines running) and 200VAC in flight
A
Monday 2010-09-06
1. Purposes of ILS..provide lateral and vertical guidance
2 . Boxes involve? – ils receiver ( MMR – the latest )
3. Where are the antenna located –radome – localizer & glideslope, Lnding gear door, stabilizer
4. Marker beacon - provide guidance for straight line, alternate means of navigation
5. Box of marker beacon – vor marker beaon receiver, left receiver
6. Radio altimeter – measure distance ( absolute height up -20 to 2500 ft ) up 2500 no indication
7. Where is the indication for radio altitude – shows on pfd ( at btm right)
8. Radio altitide decision height – 999
9. Weather radar - looking for clouds formation, windshear detection during take off and landing, terrain
10. weather radar indication on – ND, what pages available for weather radar indication- 4 pages= expan
11. the ranged of weather radar – 320 nm
12. how do u switch on wether radar- efis control panel
13. the new feature of wether radar- multiscan
14. if weather radar is on, terrain is more important
15. alternate way to selecet weather radar- CDU
16. TCAS- avoid collision between 2 ac by giving warning and also create awereness of a around him
17.works in conjuction with atc
18. TCAS works in conjuction with mode s transponder
Category Article B 777
