Autoland Flashcards
Does Autoland Require Autothrottle and Autobrake?
No
How many IRS are required for an Autoland?
2
How many RAD ALTs are required for an Autoland?
2
When is Autoland Enabled?
Automatically on aircraft Power up
Where can you disable Autoland and what indication will you see?
MCDU
AUTOLAND OFF EICAS Message
When is Autoland Engaged?
Flaps 5
RAD ALTs x 2 between 800ft & 1500ft
Which Buttons are inhibited when Autoland is engaged?
TRS, SRC, NAV, APP, BANK, HDG, VNAV, FLC, FPA, VS
When is Autoland ARMED?
Autoland Enabled
Autopilot Engaged
Yaw Damper Engaged
NAV 1 & 2 tuned to same ILS frequency
FD Approach Mode Selected
Flight Directors operational on both PFDs
Valid Airspeed & Baro on both PFDs
GS & LOC Deviation Valid on both PFDs
LOC1 & LOC 2 on Opposite PFDs as Nav Source
Both Minimums knob sent to RA
Minimums Selected to same Value
No Monitors Tripped
Not in Back Course
No EICAS Message (Autoland)
What are the 5 Autoland Modes?
AFRDR
ALIGN
FLARE
RETD
D-ROT
RLOUT
When does ALIGN mode engage?
150ft
When does FLARE mode engage?
50ft
When does RTD mode engage?
30ft (Only if Autothrottle is engaged)
When does D-ROT engage?
Main Gear Touchdown
When does R-LOUT engage?
Main Gear Touchdown
When is the Automatic Pitch Trim Logic commanded?
800ft
What is the purpose of the Automatic Pitch Trim Logic?
Trims UP to prevent a nose down transient in the event of an Autopilot disconnection
When is Automatic Pitch Trim Logic Inhibited?
Below 50ft
What is the difference between a 2 Engine and a OEI Autloland Approach Sequence?
Nothing
Describe the Autoland Approach sequence
Above 1500ft
- APP Button pressed
- Autoland ARMED
- Autoland 1 WHITE ARMED on FMA
- LOC & GS ARM
1500ft
- Rudder Pedal Check by the Rudder Servo
Between 1500ft & 800ft
- LOC & GS Engage (Captured)
- Autoland ENGAGES
- Autoland 1 GREEN on FMA
- ALIGN & FLARE ARM
800ft
- Pre Trim UP commanded by the Automatic Pitch Trim Logic
150ft
- ALIGN engages GREEN
- RLOUT & RETD ARM (WHITE)
50ft
- FALARE engages GREEN
- D-ROT ARM (WHITE)
- Automatic Pitch Trim Logic Inhibited
30ft
- RETD engages GREEN
Main Gear Touchdown
RLOUT & D-ROT Engage GREEN
Autothrottle disengages
Autopilot Disconnect
- 5 seconds after touchdown
How long after touchdown does the Autopilot disconnect after an Autoland?
5 seconds
What colour is an External Failure?
AMBER
What colour is an Internal Failure?
RED
When is the Rudder Pedal check performed by the Parallel Rudder Servo?
1500ft
What must the RA Minimums be set to for a CAT II & III Autoland?
CAT II - 80ft +
CAT III - 50ft +
When is the Parallel Rudder engaged?
Autoland Engagement
Go Around with Autopilot Engaged
How many rudder servos are there?
1
+ an extra Rudder Servo (Parallel Rudder)
When happens during the Parallel Rudder Self Test?
Slow & Small movement of the Rudder Pedals
During Final Approach what system logic does the Parallel Rudder apply?
Crab Technique until 150ft, then sideslip is applied
What happens to the Autopilot during loss of the Rudder Servo during an Autoland?
Autopilot Disengages
Autoland Not possible
What happens if the Rudder Servo is lost during a Go Around with Autopilot engaged?
Autopilot is disengaged
