Low Visibility Ops 2 Flashcards
What does FALS stand for?
Full Approach Lighting System
What are the required visual references for a CAT IIIB approach?
None (1 light for CAT III B with DH)
What is ‘company’ DH on CAT III B approach?
No DH (unless indicated otherwise. If a DH is published, use that. With a published DH, this changes the required visual references from nothing (standard CAT III B) to needing to see 1 light
If CAT III B minima are published, but the aircraft is not capable and needs a CAT III A minima, what options do you have?
CAT III A minima can be used by default if needed. Minima would be DH50/ RVR200
Where can you easily find the headwind, crosswind and tailwind limits for low visibility procedures?
In the QRH low visibility operations landing summary page
At what height is landing inhibit?
800ftRA
At what height is the FMGC data lock?
700ftRA
What should you do in low visibility operations when you get a master caution or downgrade between 1000ft and alert height (100ft)?
Go around, unless visual references are sufficient. (Required equipment not monitored by FMGC is no longer relevant)
What should you do in low visibility operations when you get a red AUTOLAND light?
Go around
When is the red AUTOLAND light active?
Below 200ftRA
What would generate a red AUTOLAND light?
Loss of both APs, Loss of LOC > 15', Loss of G/S >100', Deviation from LOC or G/S, RADALT discrepancy > 15ft, FMGS detects long flare, FMGS detects early/untimely flare
In an autoland, what should you do in the event of a failure below 100ft?
If it triggers the AUTOLAND light, go around. Any failure affecting the fail operational criteria is ignored
How many consecutive approaches can be attempted in LVPs?
2 consecutively, subject to significant wx improvement, emergency, or non-related GA and assured landing
After landing, what do alternating red and white centreline lights mean?
900m to go
After landing, what do continuous red centreline lights mean?
300m to go
What is the FO visibility limitation on takeoff?
550m RVR
What is the lowest visibility for takeoff with LVPs in force?
Depends on lights and day/night. Info in QRH SI 20.
With maximum available lighting, 125m RVR for all relevant RVRs, although pilot assessment can replace RVR for the first third.
Caution - airport may have more restricted value in AOI
What is the lowest visibility for takeoff with LVPs not in force?
Depends on lights and day/night. Info in QRH SI 20.
No lights 500R/500V
Lights 400R/400V
Caution - airport may have more restricted value in AOI
Is an autoland CONF FULL or CONF3?
Approved for both
Is an autoland CONF FULL or CONF3, when OEI?
A320 CEO fail passive autoland - flap full only
A319/A320 NEO fail passive autoland - flap 3 or full
What glideslope angle is approved for autolands?
2.5 to 3.15 (CEO) or 3.25 (NEO)
Hence caution in AGP
What is the maximum airport elevation approved for autolands?
9200ft
Note autolands not approved below -1000ft pressure altitude (1050hPa or higher if sea level)
What aircraft weight is approved for autolands?
Must be below max landing weight
However, for A319 and depending on situation, and providing runway is approved, can decide to perform autoland up to 69t
What does NALS stand for?
No Approach Lighting System
