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B777 CATHAY STUDY GUIDE > ALL WEATHER OPS / LOW VIS OPS > Flashcards

ALL WEATHER OPS / LOW VIS OPS Flashcards

1
Q

What is the alert height for the B777?

A

200 ft RA

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2
Q

What level of autopilot redundancy is provided with LAND 3 annunciated?

A

Fail Operational. A single fault cannot prevent the Autopilot system from making an automatic landing

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3
Q

What level of autopilot redudancy is provided with LAND 2 annunciated?

A

Fail Passive. A single fault cannot cause a significant deviation from the flight path

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4
Q

During an asymmetric go-around from LAND 2 or LAND 3 approach, will automatic engagement of LNAV cause the autopilot to relinguish control of the rudder?

A

Yes. At the first change of a lateral or vertical mode, whether manually or automatically selected, i.e. LNAV, TRK SEL or ALT capture

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5
Q

With “AUTOTHROTTLE L” unserviceable is it possible to do a CAT III B approach?

A

No. Both autothrottles must be serviceable

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6
Q

If the F/O’s autopilot disconnect switch is inoperative, can you do a CAT II approach?

A

No. One may be inoperative provided:
a. Autopilot is not used below 1’500 ft AGL
b. Approach minimums

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7
Q

What is the meaning of the PFD localizer or glideslope deviation indicator turning amber and flashing?

A

Excess deviation from the required flight path at low RA

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8
Q

What pilot action is required in the event of a flashing LOC or GP deviation during approach above Alert Height?

A

If the aircraft is correcting, the approach may be continued

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9
Q

What pilot action is required in the event of a flashing LOC or GP deviation during approach below Alert Height?

A

A go-around must be commenced or if visual conditions permit, the autopilot may be disconnected and a manual landing made

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10
Q

What is the significance of a Master Caution light and aural signal below Alert Height?

A

Below alert height all unrelated alerts are inhibited. A Master Caution light and/or aural signal below alert height requires a go-around, or a manual landing if visibility permits

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11
Q

What EICAS caution messages/aurals are NOT inhibited below alert height?

A

NO AUTOLAND
AUTOPILOT
SPEEDBRAKE EXTENDED
AUTOTHROTTLE DISC

“NASA”

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12
Q

What AFDS (approach category) category is available during an engine inoperative approach with LAND 3 on both PFD:s?

A

CAT III B

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13
Q

If correct FMA mode changes do not occur during the landing phase, the F/O will call?

A

“NO FLARE”, “RETARD” and “NO ROLLOUT” as appropriate

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14
Q

What indications would you expect during “Short Term Interference”?

A

Erratic ILS raw data indications
A/P disregards ILS signal and continues in attitude stabilised mode based on ADIRU data

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15
Q

What indications would you expect during “Long Term Interference” or failure?

A

A/P remains in attitude stabilised mode
Amber lines through affected modes
EICAS caution message “AUTOPILOT”
F/D:s disappears

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16
Q

What are the maximum windspeeds when using autoland?

A

Headwind = 25 kts
Crosswind = 25 kts
Tailwind = 15 kts

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17
Q

What is the maximum crosswind component for landing on a contaminated runway?

A

If more than 15 kts, consult FCOM 3 limitations

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18
Q

What are the system requirements when it comes to
a) LAND 2 and LAND 3
b) Autothrottle
c) Single sources

A

a) LAND 3 on both PFD:s for CAT III B, LAND 2 on both PFD:s for CAT III A and LAND 2 on one PFD for CAT II
b) Autothrottle on each operating engine for CAT III B
c) No single source (Displays, Rad alt or ILS) for all catergories

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19
Q

Is a CAT III B approach permitted with EICAS “AUTOTHROTTLE?

A

No

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20
Q

What is the minimum disconnect height on an ILS approach if LAND 3 or LAND 2 is not annunciated?

A

200 ft AGL

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21
Q

What is the significance of EICAS “NO AUTOLAND”?

A

Requires CAT I minimas to be used
Below 1000ft and alert height a go-around must be commenced unless visual landing can be made

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22
Q

When is a Take-off alternate needed in LVO conditions?

A

When the take-off weather conditions at the departure airport are at or below the published ILS landing minima or the minima for the approach in use

23
Q

The destination alternate has CAT III B capability. Is it ok to file this airport as an alternate if the weather is below CAT I?

A

No. LVO minima can’t be used for alternate airports

24
Q

After dispatch, the destination alternate weather forecast indicated LVP will be required. What should the crew consider with respect to the destination alternate?

A

Make sure that the alternate permits CAT I operations

25
Q

A NOTAM indicates that the centreline lights are unserviceable. Is a CAT II ILS ok?

A

Yes, if RVR is 300m (day) or 550m (by night)

26
Q

c

A

Check CAT III capability/suitability. If not ok, go around at 1’000 ft

27
Q

Below 1’000 ft:
On a CAT III A approach the RVR deteriorates below minima…..what is your action?

A

Continue down to minima and if not visual, go around

28
Q

Below 1’000 ft:
On a CAT III B approach the RVR deteriorates below minima….what is your action?

A

With no DA, i will land as no visual reference is required
With a DA, at DA i will go around unless i am visual

29
Q

What is generally the crosswind limitation for LVP landings for:
CX?
USA?
CANADA?

A

CX: 25 kts
USA:15 kts
CANADA: 15 kts

30
Q

Above 1’000 ft:
On a CAT III B approach the A/T fails…..what is your action?

A

If i can revert to CAT III A minimas i will do that and continue. Can reset minimas on PFD
If i can’t revert to CAT III A then i will go around at 1’000 ft

31
Q

Below 1’000 ft:
On a CAT III B approach the A/T fails…..what is your action?

A

If i can revert to CAT III A minimas i will do that but don’t change the minimas on the PFD
If i can’t revert to CAT III A then i will do a go-around

32
Q

What are your actions if the autopilot disconnects below alert height?

A

Land if i am visual, otherwise go-around

33
Q

What are the minimas (CEILING/RVR) for a CAT II approach?

A

Ceiling 100 ft RA
RVR 350/150 m

34
Q

What are the minimas (CEILING/RVR) for a CAT IIIA approach?

A

Ceiling 50 ft RA
RVR 200/150 m

35
Q

What are the minimas (CEILING/RVR) for a CAT IIIB approach?

A

Ceiling 0 ft RA
RVR 100/100/100 m

36
Q

At what distance from the far end of the runway does the center line lights turn alternating red/white?

A

900m / 3000ft

37
Q

At what distance from the far end of the runway does the center line lights turn red?

A

300m / 1000ft

38
Q

What is the recommended RVR for taxi during LVO operation?

A

75m

39
Q

How can you satisfy yourself that LVO are in force before conducting an LVO approach?

A

Could be on ATIS
Clearance for an CAT II/III approach satisfy that

40
Q

What are the criteria for a stabilized approach?

A

IAS +10/-5 kts
ROD max 1’000 ft/min
Pitch +5 to -2,5 degrees
Bank angle 7 degrees
LOC 1 dot
G/S half a dot

41
Q

Is it ok to do an AUTOLAND when being overweight?

A

Yes, but not recommended

42
Q

What are your first actions after a rejected T/O in LVO conditions?

A

Put all lights ON

43
Q

What is the RVR definition for when a T/O becomes LVO?

A

RVR below 400m

44
Q

What is the RVR definition for when a landing becomes LVO?

A

RVR below 550m

45
Q

Which RVRs are controlling on a CAT II approach?

A

TDZ and MID

46
Q

Which RVRs are controlling on a CAT IIIA approach?

A

TDZ and MID.
If the MID is unavailable, then the RO can be substituted for the MID

47
Q

Which RVRs are controlling on a CAT IIIB approach?

A

TDZ, MID and RO
If MID is unavailable, then the RO can be substituted for the MID and the remaining two are controlling

48
Q

What RVRs are controlling for a CAT I approach?

A

TDZ only
But if MID is reported it has to be above 200m for a manual landing or above 150m for an AUTOLAND

49
Q

What is the visual requirements for a CAT IIIA approach at DA?

A

3 centerline lights must visible

50
Q

What is the visual requirements for a CAT II approach at DH?

A

Approach environment and threshold must be visible

51
Q

What is the visual requirements for a CAT IIIB approach at DH?

A

1 Centerline light with a DH and no visual requirements if there’s no DH

52
Q

A NOTAM indicates that the standby ILS transmitter is unserviceable. Is a CAT II ILS permitted?

A

Yes, for a CAT II but not for a CAT IIIA or CAT IIIB

53
Q

A NOTAM indicates that the approach lights are unserviceable.
Is a CAT IIIA ILS approach permitted?

A

Not allowed with DH > 50ft

54
Q

After how long time does Short Term Interference, for ILS signal disruption, turn into Long Term Interference?

A

30 seconds

B777 CATHAY STUDY GUIDE (24 decks)

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