Low Visibility Procedures Flashcards
Define fail operational
If in the event of a failure below alert height, the approach, flare and landing can be completed automatically. Following a failure the system become fail passive and an automatic landing can be completed.
Define fail passive
If in the event of a failure, there is no significant out of trim condition or deviation of flight path or attitude. The landing cannot be completed automatically.
When does the red Autoland light become active?
Below 200’ RA
Define Alert height
A height above touchdown above which a CAT3 Autoland would be discontinued if a failure occurred in either aircraft or ground equipment. A failure between 1000’ and Alert Height (100’ RA) leading to downgraded capability, a go around is flown.
What do you do if you experience any failure leading to downgraded capability displayed on the FMA between 1000’ and Alert Height (100’ RA)
Go Around
What happens if you experience a failure below alert height?
The failure would be ignored and the approach and landing continued except in the case of a RED AUTOLAND light.
When will ATC initiate LVPs at the latest?
≤ 200 ft ceiling or ≤600 m RVR
What should you consider when briefing the threats associated with LVPs (5 items)
- Need for alternate airfield
- Potential holding required
- Actions in case of downgrades
- Review of task sharing from the QRH
- WLM during taxi
How do we know what approach the aircraft is capable of? (4 items)
- Required equipment for CAT 2 and CAT 3.
- ECAM Status page
- MEL
- FMA
ILS CAT2 AND CAT3 Autoland is approved in CONF 3 and CONF FULL.
In the case of engine out what config must each type fly zed approach?
A320 CEO: Fail passive autoland - FLAP FULL only.
A319/A320 NEO: Fail passive autoland - FLAP 3 or FLAP FULL.
Where can the maximum wind conditions be found?
Operational data in the quick access folder.
Which RVR is controlling for all instrument approaches with an MDA, DA or DH?
Thouchdown RVR
If the mid point and stop end RVR’s are reported and relevant, what RVR is controlling?
All are controlling
What is the minimum RVR values for an approach with roll out guidance at touchdown, mid-point and stop-end?
Touchdown: As published on the chart
Mid-point: 75 m
Stop-end: 75 m
What is the minimum RVR values for an approach without roll out guidance at touchdown, mid-point and stop-end?
Touchdown: As published on the chart
Mid-point: 125 m
Stop-end: 75 m
How many consecutive approaches can be attempted when there has been a go around due to weather conditions?
2 consecutive approaches
3 in exceptional circumstances when a go around has been flown for non-weather related reasons providing the commander is satisfied that landing is assured.
Define ‘safe landing’
In the context of fuel schemes, a landing at an adequate aerodrome with no less than the final reserve fuel remaining in compliance with the applicable operational procedures and aerodrome operating minima.
Does CAT 1 provide enough precision for automatic roll out?
No
Where is the approach ban point?
When can you continue beyond the approach ban point?
1000 ft above airport elevation or in the case DA/H or MDA/H is more than 1000 ft above the aerodrome.
You can continue past the approach ban point provided the TDZ RVR, and MID/STOP if reported and relevant are above minimum.
If the RVR deteriorates below minimum after you have passed the approach ban point, can you continue the approach?
Yes
Autoland task sharing:
1000 RA:
800’ RA:
700’ RA:
500’ RA:
350’ RA:
200’ RA:
100’ RA:
40’ RA:
30’ RA:
Touchdown:
1000 RA: Fully configured and stable
800’ RA: Landing Inhibit
700’ RA: FMGC Data Lock
500’ RA: “Stable” or “Unstable Go-around”
350’ RA: CM1 checks course on the PFD
200’ RA: Red Autoland light becomes active
100’ RA: Alert Height
40’ RA: FLARE
30’ RA: THR IDLE
Touchdown: Check ROLL OUT
What 7 conditions will trigger the Red Autoland Light?
- Loss of both APs
- Loss of LOC >15 ft
- Loss of GS >100 ft
- Deviation from LOC/GS
- Rad alt discrepancy >15 ft
- FMGS detects long flare
- FMGS detects early/untimely flare
