LVPs Flashcards
When is temperature correction required? What do you adjust?
Below -10*C on the ground
Applied to MDA and all check altitudes after FAF
Lowest permissible FMA for autoland?
Cat 2
Significance of yellow and green lights on taxiway?
Still within the protected area
When can you use reverse idle on a wet runway?
Calculate performance with medium runway state. If it’s allowed with no reverse then you can use reverse idle
What is approach autothrust?
Enables more responsive thrust with engines spooling much faster.
Active below 3200RA with flap 1
Below what speed will selecting flap 1 give you 1+F?
100kts
When is low energy warning active?
Below 2000RA when 2, 3 or Full are selected
Deactivates below 100RA
What is considered a steep approach?
Anything between 3.5 and 4.5 degrees.
Flown stabilised
Can you autoland from a steep approach?
No
When will tail strike occur with compressed struts in A319/A320
A319: 13.9*
A320: 11.7*
What is the significance of 1000ft in an LVP approach?
All ecam actions must be completed
Approach ban (drop in RVR below minima before means go around)
What happens at 900ft on approach?
TCAS downgrades to TA
What happens at 700ft on approach?
Data lock. PERF page can no longer be modified
What are the stable approach criteria?
Landing Config
Speed +10/-5
On vertical profile
Max bank angle 15*
What happens at approx 400ft on approach?
LAND is annunciated
FCU and MCDU lockout
What begins at 200ft on approach?
AUTOLAND light activation. If it lights a go around must be perform unless visual
What causes autoland light to activate? (7 items)
Loss of AP Loss of G/S and LOC Loss of LOC >15ft Loss of G/S >100ft Deviation from LOC/G/S Rad alt discrepancy >15ft Detection of long flare
What happens at 370ft on approach?
PWS warnings downgrade to cautions
Why is CATII minima often a random number whereas CAT3 minima is fixed?
CATII minima is generally not over the airfield so local terrain may alter the minima
What affect does failed RVR counters have on approach capability?
Check table in QRH for affect on minima
What RVRs are controlling for an LVP approach?
Touchdown always controlling, mid point and stop end can be controlling if relevant
What value in minimum mid point RVR?
125m but can be reduced to 75m if automatic rollout used
Can a CATIIIB approach be made onto a runway where no RVR guidance is available?
Yes
Only has to be an RVR counter on the airport for CATIIIB
Of touchdown RVR is not available can you continue?
Yes as long as the midpoint and stop end are above required
If midpoint RVR not available can you continue?
Yes as long as the others are above minimum required
If stop end RVR is not available can you continue?
Yes as long as stop end is not relevant
What is definition of Alert Height
Alert height is height above which a failure of one of the redundant parts of the autoland system would necessitate a go around. Below it can complete an autoland in fail passive state
Difference between fail passive and fail operational?
When system fail passive, if there is a failure or downgrade the a/c would continue with no out of trim condition but a manual landing or go around is required
When fail operational, the a/c will continue in a fail passive state and will autoland
What are the 5 conditions which necessitate go around above alert height?
Alpha floor AP failure Amber caution Approach downgrade (triple click) Engine failure
What happens at critical heights below 1000ft on an LVP approach?
1000ft: stability criteria met
800RA: LDG inhibit
700RA: FMGC data lock
500RA: stability criteria met
