Two source of electrical power (the APU may not be used as a substitute for the left or right source)
2 operation engines
SGL SOURCE DISPLAYS EICAS message displayed
LAND 3 or LAND 2 annunciated
Two engines operating for a flaps 20 landing.
One engine operating for a flaps 20 or 30 landing.
APU as the only source of electrical power
Display of SGL SOURCE DISPLAYS, SGL SOURCE RAD ALT, SGL SOURCE ILS EICAS message
Normal flight controls
Two autoland status annunciators
Only small changes in heading/pitch are required to maintain the correct flight path.
Indicated airspeed is not less than VREF or more than VREF+20 knots
The airplane is in the correct landing configuration.
Airplane sink rate is less than 1100 fpm.
Above the Alert Height, re-engaged the autothrottle and continue.
Below the Alert Height execute a go-around if you do not have a visual reference established.
During rollout discontinue use of reverse thrust.
Below the Alert Height continue the approach using manual throttle control until you have a visual reference established or execute a go-around at minimums.
Continue the approach with autopilot disengaged.
Re-engaged the autopilot and continue the approach.
Execute an immediate manual go-around.
Execute an immediate go around.
Pilot rudder pedal pressure and rudder trim inputs are required to control yaw after 1500-foot radio altitude with localizer and glideslope capture.
Roper trim includes a slideslip and the control wheel will not be centered.
Rudder trim inputs are not effective in the LOC or ROLLOUT modes.
Engaged autopilots control the yaw using the rudder before LAND 2 or LAND 3 are annunciated.
A (-200) B (-300)
B (-200) C (-300)
C (-200 & -300)
C (-200) D(-300)
Less than 800 foot ceiling and / or 2 miles visibility
Less than 600 foot ceiling and / or 1.5 miles visibility
Less than 1000 foot ceiling and / or 2 miles visibility
Less than 200 foot ceiling and / or RVR 2,000
Using flight control Secondary operation
With SGL SOURCE RAD ALT EICAS message displayed.
During SAARU only operation
With SGL SOURCE F/D EICAS message not displayed
It can not capture without LOC already captured.
The autopilot disconnect switch has been pushed.
The autopilot is inoperative and a manual landing is required
The autoland system does not have redundancy for triple channel autoland.
NO LAND 3 means the airplane is more than 3 miles from landing.
Rollout is armed below 1500 feet RA.
ROLLOUT replaces the FLARE mode annunciation.
Rollout guidance continues until the autopilots are disengaged.
The rollout mode engages below 2 feet RA.
Flare engages between 60 and 40 feet RA.
The PFD autothrottle annunciation changed from SPD to IDLE.
Between 25 and 50 feet RA the autothrottle begins retarding the thrust levers to idle.
Flare commands can be used during a Flight Director approach and landing.
Below 200 feet it can change from LAND 3 to LAND 2
Below 500 feet, changes in autoland status are inhibited.
Below 200 feet, changes in autoland status are inhibited other than a transition to NO AUTOLAND.
2 engines must be operating
EICAS message SGL SOURCE DISPLAY must not be displayed and LAND 3 or LAND 2 is annunciated.
Minimums must be referenced to radio altitude.
LAND 3 must be annunciated.
The autothrottle engaged.
Two autoland status annunciators
LAND 3 or LAND 4 annunciated.
SGL SOURCE DISPLAYS, SGL SOURCE RAD ALT, SGL SOURCE ILS EICAS messages not displayed.
Continue the approach with the autopilot disengaged.
Re-engaged the autopilot and continue the approach. The autothrotlle engaged.
Continue the approach to minimums and go-around
Execute a go-around
Two sources of electrical power operating (the APU may not be used as a substitute for the left or right source).
Two operating engines are required.
SGL SOURCE IS – EICAS message is not displayed.
LAND 3 or LAND 2 does not have to be annunciated, only LAND1.
LAND 3 status is annunciated only on the Captain’s PFD.
Two hydraulic systems must be operating normally.
APU is operating.
LAND 2 status is annunciated on both PFD’s.
The ILS approach is flown within the expanded localizer band.
The vertical speed is within 200 feet per minute of the published value.
Heading changes do not exceed 5 degrees of the approach course.
The glideslope is flown within a quarter dot.
When on an ILS approach and radio communication is lost.
When a navigation radio or flight instrument failure occurs which affects the ability to safely complete the approach in instrument conditions.
When the navigation instruments show significant disagreement, but visual contact with the runway is made.
When on an ILS approach, the localizer shows half scale deflection.
FTCM/Holding, approach a Center and Right hydraulic system are operating normally.
Antiskids is operative
Autothrottle is engaged.
ADIRU is operating.
EICAS message SGLSOURCE ILS is not displayed.
Both engines are operating.
EICAS message SGL SOURCE DISPLAYS is not displayed.
An FMA is displayed for each pilot.