Navigation (34) Flashcards
1
Q
What is the ADAHRS and what does it provide?
A
Air Data, Attitude and Heading Reference System
2
Q
What makes up the NAV system?
A
2x ADAHRS
2xRADALT
DME
GPS
2xNAV
ADF
XPDR
TCAS II
WXR
3
Q
How are the Pitot Static heated?
A
Electrically:
Probe 1 - MAIN 1 (REPU1)
Probe 2 - ESS 2 (REPU2)
4
Q
How is the ESIS powered in an emergency?
A
Battery kit - 30 mins
5
Q
What components make up the Air Data System?
A
- 2 OAT sensors
- 2 Alt static Sources
- 2 Pitot static probes
- 2 ADAHRS
- ESIS
6
Q
Where is ADF imbedded?
A
NAV 2
7
Q
Which pitot provides which ADAHRS?
A
Onside
8
Q
Do the OAT sensors feed each side?
A
No
Onside only
9
Q
How many ways can you change the BARO
A
- DCP
- B Bezel keys
10
Q
What happens when you change the BARO setting?
A
BARO flashes for 5 seconds on each PFD.
11
Q
If you see 000 as black over amber on the ASI what does this mean?
A
- The airspeed is below 20kts
- or that the WOW is active
12
Q
What does three white dashes mean on the IAS?
A
No computed data
13
Q
How is G/S computed and what happens if it cant provide data?
A
- FCC
- Will show white F
14
Q
What do three amber dashes in the G/S mean?
A
The data has failed.
15
Q
How is VNE calculated?
A
By the CDS using current PALT and OAT to obtain a Corrected Airspeed
(Cockpit Display System)
16
Q
What happens if VNE is exceeded by 1kt?
A
“AIRSPEED AIRSPEED” is announced
17
Q
What does the IAS Trend provide?
A
The IAS in the next 6 seconds
18
Q
How is ALTA setting displayed prior to engaging?
A
As a blue readout and blue bug
19
Q
When does VNE Miscompare announce?
A
> 7kts >1s
20
Q
When does IAS miscompare announce?
A
> 20kts >1s
21
Q
When does OAT miscompare announce?
A
> 2deg >2s
22
Q
When does ALT miscompare announce?
A
> 150ft >1s
23
Q
You see ALT flashing between blue and black, what does this mean?
A
Difference between the LHS and RHS BARO >0.15 inHg (5hPa)
24
Q
What consists of the attitude and direction subsystem?
A
- 2x ADAHRS
- ESIS
- 2x MSUs
25
What is the purpose of the Aircraft Personality Module (APM) and how many are there?
2, one for each ADAHRS
- Stores parameters used by ADAHRS 1&2
- Tilt angles
- MSU calibration data
- MSU Orientation
26
What is the MSU (Magnetic Sensing Unit) and how often does it need to be programmed?
Replaces the flux valve
5 years
27
How is the MSU managed? (MAG/DG/SYNC)
Via MFD Bezel B Keys
28
What does the amber arc on the compass rose indicate when in DG?
The difference between DG and MAG heading
29
When does the Excessive pitch up and down indicators show?
+38
-28
30
What does TRU mean on the NI?
That the heading reference is set to True
31
Does MAG/TRU maintain the last selection on power up?
YES
32
Does the AHRS automatically switch to DG?
YES
When IVO magnetic disturbances
33
How is TRU HDG selected?
EDCU
Last setting retained
34
When is the Digital VSI readout removed?
<300fpm
35
Where can you select between TRUE & MAG?
EDCU
36
When do you get a PITCH or ROLL Miscompare?
> +/- 5deg >0.5s
37
When does a HDG Miscompare annunciate?
>10deg >2sec
38
When does a VS miscompare annunciate?
>200fpm >1s
39
What happens to the compass rose when HDG FAIL is annunciate?
Heading box - 3 white dashes, compass rose and graduations remain displayed
40
How long does ADAHRS take to align?
60 secs
41
What does ESIS stand for?
Electronic Standby Integrated System
42
What feeds the ESIS?
- EMER 1
- ADAHRS 1 (2 can be selected)
- NAV1 & NAV2
-WOW
43
Is the ESIS VNE dynamic?
NO - fixed
44
WHat happens to the ESIS ASI when IAS<20kts?
Reads 0
45
Can the FMS feed the ESIS?
No
46
What malfunction could an ATT and heading failure indicate?
ADAHRS 1 fail
47
How is NAV1 & 2 controlled?
By both AMMCs from EDCU via A429s
48
Which NAV is the ADF fitted to?
NAV2
(Rockwell Collins 4000)
49
What will show if the CRS is being controlled by the opposite seat?
Displayed in Grey
50
How can you change the CRS?
Primarily by the DCP
Secondarily via the PFD Bezel Keys (MENU 1/2, SET, - COURSE +)
51
What is displayed with a failure of the Glideslope or Localizer on the ILS display?
Yellow cross
52
Where are Markers shown during an ILS approach?
On the PFI of the PFD
53
When does LOC or GS miscompare happen?
>0.75 dot >1s
54
Independent Position Determining is achieved by:
RADALT
TCAS
WXR
55
What are and where are the RADALT transceivers installed?
Rockwell Collins ALT-4000
The floor of the tailboom
56
How are the RADALTs Powered?
RADALT 1 - MAIN4
RADALT 2 - ESS1
57
What is the default DH bug setting on power up?
200ft
58
How are the RADALTs tested?
Via the RA TEST button on the DH Knob via the DCP
59
What aural message happens when the Radar Height is less than the DH setting?
“DECISION HEIGHT”
60
Up to what height is the DH warning inhibited during takeoff?
DH +10ft
61
When does the vertical tape on the RADALT display disappear and appear?
Disappears climbing through 530ft
Appears descending through 500ft
62
What happens if RADALT data received is failed or missing from the onside system?
It is read from the cross-side
63
When does RADALT miscompare occur?
RADALT 0ft or 10ft difference
RADALT 2500ft or 300ft differance
64
What indicates a successful RADALT test?
RA1 50
RA2 50
Vertical tape in green at 50ft
65
How is GAIN and TILT controlled on the WX RADAR?
MFD Bezel Keys and the CCD/CCJ
66
How is the WX radar controlled?
Via the VCP (Virtual Control Panel) on MFD B9 Bezel key
67
How is the TCAS II integrated into the aircraft?
The DUs communicate with the TCAS II via AR429 and with the AMMS via the AFDX
68
How does the TCAS II communicate with other aircraft?
Via the TXPDR Mode S
69
Where is the TCAS II located?
RH Nose Avionics Bay
70
What powers the TCAS II?
MAIN 4
71
Under the TCAS II options, what does ABS mean?
Intruders will be shown as their absolute pressure altitudes
(not relative)
72
Where are the TCAS II controls?
EDCU
Range is changed on the MFD Bezel Keys
73
What MAP formats are Altitude annunciations shown on TCAS II?
In ARC MAP and 360 MAP formats
74
How is the TCAS II tested?
1. Via the EDCU
2. Via the MFD Bezel keys
75
What is the primary altitude source for the TCAS II?
RALT
76
When is TCAS STBY shown?
1. Either selected by the crew
2. WOW when on the ground
77
How many targets can be tracked and displayed by the TCAS II?
- 60 tracked
- 30 displayed
78
What display has to be selected on the MFD to display TCAS II information?
FPLN
79
During TCAS II test what is depicted by a solid red square at 2nm, at 200ft above with no vertical speed arrow at 90 degrees show?
RA
80
What is the VSI green zone called on a TCAS II RA?
Fly-to Zone
81
When will you receive a TCASII “CLIMB, CLIMB NOW, CLIMB, CLIMB NOW”?
Follows a descent advisory. Indicates that a reversal is required
82
When will you receive a TCAS “DESCEND, DESCEND NOW, DESCEND, DESCEND NOW”?
Follows a CLIMB advisory. Reversal required.
83
Can you receive an RA below 1000ft?
No
84
When are TCAS Aural Warnings suppressed?
If there is a higher priority message being generated by HTAWS or VMS.
85
What NAV is the ADF associated with?
NAV 2
(rear avionics bay)
86
Where do you test the ADF?
EDCU or
Bezel Keys
87
What will happen to the ADF pointer during the test?
The pointer will swing
88
What do three amber dashes mean on the ADF bearing?
ADF Failure
89
What happens when you test the NAV1/DME1 via the EDCU?
1. 100nm will show on both PFD
2. DME TEST tone will be heard on relevant ACP
3. AOK will briefly display on DME label.
4. Green tick on EDCU
90
Which GPS provides information to the XPDR?
GPS 2
91
Where are the GPS receiver units located?
Rear avionics bay.
92
When will get a GPS HT Miscompare?
>200ft for >3s
93
When do you get a GPS POS miscompare?
>0.3nm for >1s
94
What happens to the nav solution if you receive 1(2) GPS FAIL caution
The other GPS will feed the failed one
95
What AMMC is the XPDR connected to?
AMMC2
96
What is the TSS?
Traffic Surveillance System
Combines TCASII, Mode S and ADSB into one LRU
97
Where is the TSS LRU located?
RHS of nose avionics bay
98
Where is the HTAWS obstacle databases stored?
In each DU
99
What is the purpose of the HTAWS?
Computer and
Display obstacle positions
Generate terrain maps
Visual and aural alerts
100
How is the HTAWS controlled?
Via CTRL button on the bezel key 9
101
Is HTAWS automatically displayed on the MFD?
No
102
What does DARK RED on the HTAWS Terrain Display indicate?
No clearance
The terrain is more than 1000ft above the aircraft
THE AIRCRAFT MAY NOT BE ABLE TO ESCAPE THIS TERRAIN
103
What is the GPWS primary alerting source?
RALT
104
What is HTAWS Mode 3 and when does it trigger?
DON’TY SINK
500fpm ROD detected
105
What is HTAWS Mode 4 and when is it triggered in 'normal' mode?
TOO LOW GEAR
<125ft with gear up
106
What is HTAWS Mode 5 and when is it triggered?
GLIDE SLOPE
>1.3 dots
107
What is HTAWS Mode 1 and when is it triggered?
PULL UP (repeated)
Excessive ROD
108
What is HTAWS Mode 6 and what does it do?
Gives Height Call outs
Arms at 400’
“THREE HUNDRED”
“ONE HUNDRED”
“FIFTY”
109
What is the purpose of the SVS (Synthetic Vision System)?
Provides a computer generated representation of the external environment
110
How is the SVS configured at Power-On?
It is on as default
111
How is the SVS controlled?
DCP
Bezel key B1 on PFD
112
What does the Flight Path Vector indicate on the SVS?
Shows where the aircraft will go
113
Is the FPV (Flight Path Vector) considered a primary instrument?
No
114
How is a towered obstacle depicted in the SVS?
Square Pyramid
115
How is a Non-towered Obstacle depicted in the SVS?
Square cuboid
116
How are airports depicted in the SVS?
3D Domes
117
What do the colours of the runways depict in the SVS?
CYAN - Departure
MAGENTA - Destination
YELLOW - Alternate
118
What will cause an [SVS DEGR]?
1. No Velocity Vector
2. No airport data
3. No obstacle data
119
What causes an [SVS FAIL] and the SVS image to be removed
1. Unusual attitude
2. Sensor failure
3. RALT in Test
120
After an SVS fail due to a UA when is the SVS image restored?
- Pitch <10deg
- Roll <5deg
121
How is the DMAP interfaced for flight planning functions?
With the FMS
122
How is the DMAP controlled?
Via the MFD Bezel keys
123
How are the GPSs connected to FMS 1&2?
Each GPS Feeds both FMS
124
Where is the FMS data stored?
Within the AMMCs
125
How do you change your primary NAV source?
In the PFD bezel keys
126
When does Lateral (LG) and Vertical (VG) miscompare annunciate?
LG - 0.75 dot >1s
VG - 0.5 dot >1s
127
What is the default HSI format?
360 HSI
128
What are the 2 ways of Operating the FMS?
- EDCU
- MFD
129
What VPATH descent profiles are available in the FMS/
1. VPATH FLight Path Angle (VPATH-FPA)
2. VPATH Geometric Point to Point (VPATH-GPP)
130
What happens when the Flight Technical Error (FTE) exceeds the current RNP?
“RNP RNP” audio
Amber RNP value on CDS
131
What does OUT OF FP button mean in the FMS?
Permits selection of a new destination that is not in the active FP.
132
How do you recover legs cut out by a Direct To selection?
DTO WPR RECOVERY
Restores legs to their original order
133
What does a lower Horizontal Dilution Of Precision (HDOP) mean to your GPS accuracy?
Improved Accuracy
134
At what speed can NAV be coupled?
>40kts
135
How can you engage G/A and what will it give you?
Collective button only
75kts & 1000’fpm
136
What is the minimum RHT for G/A activation?
200ft
137
When will you get a [FUEL LOW] WARNING….
(be careful)
You wont; its a caution
138
What is the system responsible for the CAS?
The 2 AMMCs
Specifically the VMS within the AMMCs
139
Where will [CAS MSCP] Annunciate?
Bottom of VMS
140
What does the pitch reference datum indicate when:
1. empty
2. filled
1. Datum changing
2. Datum achieved
141
How long is the obstacle database valid for?
28 Days
142
How do you initialise the FMS?
(3)
1. PPOS
2. FLT PLN
3. PERF
