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HERC REVISION > SERV SYSTEMS > Flashcards

SERV SYSTEMS Flashcards

1
Q

What systems are needed for the TCAS to function? (4) - REMI

A

Radio altimeter
EGI1 or EGI2
Master SP
IFF for coding

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2
Q

What would be the reason for getting a ‘mode 4’ announciation on the CAWs? (3) KIM

A

Improper mode 4 response
Mode 4 code storage problems
KIT-1C failure
(Selection of IFF 2 will remove)

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3
Q

What is the required response to a resolution advisory (RA)? (4)

A

Manually “fly to” guidance
5 second required response time
1/4 G manouvre
“TCAS RA” radio call to ATC

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4
Q

TCAS 2nm range ring appears when?

A

Around Aircraft symbol at 20nm or less range scales.

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5
Q

Know the TCAS advisories for various altitude bands.

A

Changes from TA only to TA/RA 1100ft AGL on climb and 900ft AGL on descent
Voice call outs disabled 600ft AGL in climb 400ft AGL in descent

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6
Q

What are the 4 functional areas of the EGPWS

A

Typical GPWS- standard ground proximity warning

Enhanced (EGPWS)-
Terrain awareness and display (TAD)
Terrain clearance floor (TCF)
Peaks mode

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7
Q

What are the primary sensor inputs that the EGPWS uses?

A 
Geographical position
Attitude
Barometric altitude
Radio altitude
Airspeed
Glide slope deviation
Gear and flap position
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8
Q

What type of approach would you get a mode 6 “500” call out?

A

Non-precision appch

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9
Q

What does a peaks display of 34/75 mean?

A

Within the range of the EGPWS, minimum terrain elevation is 3400ft and max is 7500ft

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10
Q

What are the two possible EGPWS displayed annunciations on the RHS of the ADI?

A

Red pull up

Yellow ground prox.

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11
Q

What functions does “terrain inhibit” inhibit?

A

All 3 enhanced functions

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12
Q

Peaks mode colours

A 
Displayed in three colours
Solid green (blw 500ft blw)
Low density green (1k-2kft blw a/c)
High density green (500ft-1kft blw a/c)
Medium density yellow(500ft blw-1kft abv a/c)
High density yellow (1k-2kft abv a/c)
High density red (2kft< aircraft)
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13
Q

How far ahead does the enhanced terrain alerting look?

A

Caution given when impact possible within next minute
“Caution terrain” ground prox flag

Warning given when caution ignored or impact possible within next 30 seconds
“Terrain pull up” pull up flag

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14
Q

What actions must be carried out if IMC and a “PULL UP!” Warning issued (5)

A 
apply power, select TOGA and pitch up
positive ROC select gear up
 climb at 1.2 Vs
Advise ATC if required
Once clear of obstacle, clean up, debrief and re-plan
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15
Q

What are the primary purposes of the low power weather radar? (3)

A

High resolution ground mapping
Predictive wind shear detection
Weather conditions awareness

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16
Q

What are the primary modes of the radar? (6)

A 
Weather (wx)
Wind shear (ws)
Map (either DBS, MGM or RBGM)
Beacon (GBCN or ABCN)
Skin Paint (SP)
Precision measurement (PREC)
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17
Q

Where is the RTP (radar processor) located?

A

Radome

18
Q

How is radar selected to be displayed on mfdu?

A

WX on Navs DCP

19
Q

Other than the picture, what is the other annunciation for radar on mfdu

A

Mode=WX on lwr lhs of SFD

20
Q

Can pilot and copilot have different ranges displayed?

A

Yes

21
Q

What does the message lock out mean?

A

The Nav has freeze selected thus the pilot command is not honoured

22
Q

What does pilot “slave” pushbutton do?

A

Causes pilot display to show what the Nav is looking at

23
Q

What happens when the test is initiated?

A

Initiates BIT
All modes are deselected
All system parameters are reset to startup values

24
Q

Does the radar transmit in freeze mode?

A

No

25
Q

What does the ISO-Echo function do?

A 
Initialised to off
Selection of ISO will present wx returns as amount of rainfall
Four settings (OFF, light WX-L, moderate WX-M, heavy WX-H)
26
Q

What does the MGM button do?

A

Default mode for ground map ops
Mono pulse ground mapping
Available in all views
Provides improved ground mapping resolution in azimuth x2-10
Radar will lock out DBS giving faster scan rate

27
Q

Ground mode and manual mode?

A

Manual-
Default mode
Cursor at constant range and bearing from a/c

Ground-
Cursor stays at a fixed point on the ground

Displayed top right below lat long

28
Q

What information does ground mode give you?

A

Lat long is displayed in upper right hand corner and elevation when ‘PREC’ is selected

29
Q

What does a flashing return mean? What range is it enabled?

A

Turbulence detected

Enabled out to 40nm (50nm on 80nm range selection)

30
Q

What do cyan arcs mean?

A

Path attenuation correction

Areas of shadows behind cells

31
Q

Are the Nav and co Pilots power buttons interlinked?

A

No, to power down system Radar must be in standby and both control panels and screens switched off

32
Q

When do you use video contrast control?

A

In areas of high returns dim to prevent saturating the display

33
Q

What settings are fixed for wind shear? (4)

A

Range coverage, tilt, sector size, and pencil beam

34
Q

What is the angle on the tilt tape based on?

A

+/- from optimum tilt

Actual tilt figure on screen when tape disappears is from the horizontal

35
Q

Where are the BIT fault codes published for the radar?

A

maintenance manual nzap 6211-001-2-8

36
Q

When in weather mode and gain is increased what is the message displayed?

A

OUT OF CAL on top of Nav display

37
Q

What will occur when EGI 2 fails?

A

When INU data is not available RGBM (real beam ground mapping) is used.
RBGM is displayed bottom left
Degraded picture not corrected for a/c roll
STAB LOST msg

38
Q

What does the beam button do?

A

Overriding default beam selection

Pencil beam for map or ground beacon and fan beam for air beacon.

39
Q

Where is the altitude readout displayed and what does it display?

A

Top left corner using RADALT below 2500’ AGL and baro alt above 2500’ AGL

40
Q

TCAS: what are the altitude settings for above & below

A
  • Above: 12,700ft above & 2,700ft below
  • Below: 12,700ft below & 2,700ft above
  • Normal: 2,700ft above and below

HERC REVISION (14 decks)

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