ALL WEATHER OPS / LOW VIS OPS Flashcards
(54 cards)
What is the alert height for the B777?
200 ft RA
What level of autopilot redundancy is provided with LAND 3 annunciated?
Fail Operational. A single fault cannot prevent the Autopilot system from making an automatic landing
What level of autopilot redudancy is provided with LAND 2 annunciated?
Fail Passive. A single fault cannot cause a significant deviation from the flight path
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?
Yes. At the first change of a lateral or vertical mode, whether manually or automatically selected, i.e. LNAV, TRK SEL or ALT capture
With “AUTOTHROTTLE L” unserviceable is it possible to do a CAT III B approach?
No. Both autothrottles must be serviceable
If the F/O’s autopilot disconnect switch is inoperative, can you do a CAT II approach?
No. One may be inoperative provided:
a. Autopilot is not used below 1’500 ft AGL
b. Approach minimums
What is the meaning of the PFD localizer or glideslope deviation indicator turning amber and flashing?
Excess deviation from the required flight path at low RA
What pilot action is required in the event of a flashing LOC or GP deviation during approach above Alert Height?
If the aircraft is correcting, the approach may be continued
What pilot action is required in the event of a flashing LOC or GP deviation during approach below Alert Height?
A go-around must be commenced or if visual conditions permit, the autopilot may be disconnected and a manual landing made
What is the significance of a Master Caution light and aural signal below Alert Height?
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
What EICAS caution messages/aurals are NOT inhibited below alert height?
NO AUTOLAND
AUTOPILOT
SPEEDBRAKE EXTENDED
AUTOTHROTTLE DISC
“NASA”
What AFDS (approach category) category is available during an engine inoperative approach with LAND 3 on both PFD:s?
CAT III B
If correct FMA mode changes do not occur during the landing phase, the F/O will call?
“NO FLARE”, “RETARD” and “NO ROLLOUT” as appropriate
What indications would you expect during “Short Term Interference”?
Erratic ILS raw data indications
A/P disregards ILS signal and continues in attitude stabilised mode based on ADIRU data
What indications would you expect during “Long Term Interference” or failure?
A/P remains in attitude stabilised mode
Amber lines through affected modes
EICAS caution message “AUTOPILOT”
F/D:s disappears
What are the maximum windspeeds when using autoland?
Headwind = 25 kts
Crosswind = 25 kts
Tailwind = 15 kts
What is the maximum crosswind component for landing on a contaminated runway?
If more than 15 kts, consult FCOM 3 limitations
What are the system requirements when it comes to
a) LAND 2 and LAND 3
b) Autothrottle
c) Single sources
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
Is a CAT III B approach permitted with EICAS “AUTOTHROTTLE?
No
What is the minimum disconnect height on an ILS approach if LAND 3 or LAND 2 is not annunciated?
200 ft AGL
What is the significance of EICAS “NO AUTOLAND”?
Requires CAT I minimas to be used
Below 1000ft and alert height a go-around must be commenced unless visual landing can be made
When is a Take-off alternate needed in LVO conditions?
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
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?
No. LVO minima can’t be used for alternate airports
After dispatch, the destination alternate weather forecast indicated LVP will be required. What should the crew consider with respect to the destination alternate?
Make sure that the alternate permits CAT I operations
