When VALTS is active, any change in the altimeter setting:
The FMA uses the color conventions that follow to display the FD modes and status. Red color is for:
During the (V) ALTS CAP mode, the flight guidance/autopilot may not maintain the selected airspeed. Crew intervention may be required to maintain the selected airspeed.
With the autopilot off during One Engine Inoperative (OEI), the pilot uses rudder inputs to center the beta target, and uses roll commands to maintain the heading. With the autopilot engaged the pilot:
Heading, airspeed, altitude preselect, and the transponder code cannot be changed during Emergency Descent Mode (EDM) descent.
Heading, airspeed, altitude preselect, and the transponder code can be changed during EDM descent.
If the Primary Flight Control Computer (PFCC) cannot maintain the heading, or when below_____, the roll mode replaces the heading mode (HDG). The bank angle is then maintained and a green ROLL message is displayed on the FMA.
Only one FD system (one channel) inside the DCU Model Cabinet (DMC) is active at a time, while the other is on standby. In normal operation, automatic selection of the active DMC is based on odd and even days.
Reversion Switch Panel (RSP) – FD/AT ALTN switch - Two FD/AT computers are available for flight guidance and they are both active after both engines have been started.
Two FD/AT computers are available for flight guidance but only one is active at a time. They alternate automatically every day, or if there is a failure of the active dual channel.
The FD and the AT systems are paired together. Only one FD/AT combination is active at a time.
The AP engages when the AP switch on the FCP is pushed, and when at least the bank angle is within plus or minus:
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When the speed trend vector extends beyond VMAX for a minimum of 6 seconds, the airspeed value is displayed in amber and a continuous 'OVERSPEED' aural warning sounds.
When the speed trend vector extends beyond VMAX, the airspeed value is displayed in amber and a single 'OVERSPEED' aural warning sounds.
The FD/AT can be manually changed with the:
To follow the FD commands, the aircraft must be maneuvered, either manually or by the Autopilot (AP), so that the FPV:
Pressing the XFR switch:
The AP disconnect switch on the FCP is disabled during autoland. Pilots must use the A/P DISC on the sidestick.
During One Engine Inoperative (OEI) guidance, the beta target indicator replaces the slip indicator. It has the same shape, but the color of the beta target is _____.
The Autopilot (AP) system is only available in Fly-By-Wire (FBW) normal mode. The monitor function of the system protects it from erroneous inputs. The AP system limiting function protects the aircraft flight envelope by limiting the FD commands. The roll mode limits the bank to _____ left or right.
When VGP mode is active:
The Flight Director (FD) sends pitch and roll commands to the AP system to control the primary flight control surfaces, and displays information on the Primary Flight Display (PFD) for the Flight Path Vector (FPV).
During operation in VFPA mode, an airspeed protection function commands an aircraft pitch change if the airspeed is beyond VMO/MMO.
During operation in VFPA mode, an airspeed protection function commands an aircraft pitch change if the airspeed approaches VMO/MMO.
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The preview function is available for localizer and ILS approaches. When the aircraft is within a specific distance from the station and the FMS has auto-tuned the localizer frequency, the localizer approach course, frequency, and course pointer are displayed in blue on the HSI.
The localizer frequency, the localizer approach course, frequency, and course pointer are displayed in cyan on the HSI.
In VALT mode, the FMS provides the selected altitude to maintain. VALT mode engages automatically when the selected altitude is reached. The mode also engages when VNAV is activated with the VNAV switch and the aircraft is within _____ of the selected altitude.
VNAV cross track deviation - During enroute, terminal, or approach operations, when a cross track error exceeds_____ the NO VPATH-XKE message is displayed on the HSI, and a flashing amber VPATH is displayed on the FMA.
If the approach mode degrades from APPR 2 to APPR 1 and the aircraft is above _____, a NO APPR 2 message flashes in amber for 5 seconds, followed by a steady green APPR 1 message.
VNAV track angle error - During enroute, terminal, or approach operations, when a track angle error exceeds _____, the NO VPATH−TKE message is displayed on the HSI, and a flashing amber VPATH is displayed on the FMA.
VPATH will re-arm when the track error is less than 75 degrees.
The autothrust (AT) system automatically manages the engine thrust. During the complete flight profile, servomotors in the Throttle Quadrant Assembly (TQA) automatically position the thrust levers. The AT includes engine synchronization. It is not available during single-engine operation.
During an Autoland, ROLLOUT mode starts:
When a FD cue is removed from the PFD, a _____ FD OFF message is displayed on the PFD.
On the coupled PFD, if the Autopilot (AP) is engaged:
When above _____, selection of the TO/GA switches can also activate the FCP again.
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If this approach mode degradation occurs when the aircraft is at or below 250 feet RA, the NO APPR 2 message flashes amber for 5 seconds, followed by a steady green APPR 1 message.
If this approach mode degradation occurs when the aircraft is at or below 200 feet RA, the NO APPR 2 message flashes red for 5 seconds, followed by a steady green APPR 1 message.
The Autopilot (AP) does not include an automatic rudder trim function.
The half bank mode limits the maximum bank angle used by the FD to 12.5 degrees (from 30 degrees). It is automatically activated in NAV and HDG lateral modes when the aircraft climbs through:
The half bank mode can be manually activated below 31500 feet when the 1/2 BANK switch on the FCP is pushed. It is available in HDG mode only.
The APPR (approach) mode provides for the automatic intercept, capture, and tracking of the front course localizer and glideslope. When the ILS approach is selected in the FMS and the aircraft is approximately _____ from the airport, the localizer frequency is automatically tuned, the LOC preview mode is enabled, and the course indicator sets to the localizer course.
The autopilot can be disengaged manually when:
The tiller or rudder pedals are moved (more than 0.8 inches) during autoland ground roll.
Underspeed (USPD) protection - When the current speed is in the red and black low speed marker:
When the Emergency Descent Mode (EDM) is automatically activated, the 'EMERGENCY DESCENT' warning message is displayed on the EICAS page. If it is manually activated, the 'EMERGENCY DESCENT' caution message is displayed on the EICAS page.
The AP system is engaged when the AP switch on the FCP is selected. It also engages when the Emergency Descent Mode (EDM) is activated (manually or automatically). AP system status is annunciated on the FMA.
When overspeed is active:
If the approach mode degrades (down-modes) from LAND 3 to LAND 2 above 200 feet AGL:
If an HUD is installed, indications are the same as on the PFD. A triple-click aural alert sounds when a degradation occurs.
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The Emergency Descent Mode (EDM) is automatically activated if the cabin altitude exceeds _____ and the aircraft is above 25000 feet. When the aircraft altitude is above 25000 feet, the EDM can be manually activated with the EDM guarded switch on the FCP.
To differentiate between a selected and a VNAV vertical mode, the letter 'V' is added to the navigation mode message on the FMA. For example, the altitude hold mode is displayed as 'ALT' when manually selected, and displayed as 'VALT' when managed by the VNAV.
When activated, the Emergency Descent Mode (EDM) initiates a high-speed autopilot-controlled descent to _____ using the FLC and the HDG modes.
When the preselected altitude of 15000 feet is reached, the AP and AT remain engaged, and the altitude and the heading are maintained. The speed is automatically set to 250 knots.
The autothrust (AT) operates in the takeoff hold mode (HOLD) to maintain takeoff thrust from:
During takeoff, AT manual engagement is disabled from 60 KIAS to 400 feet AGL.
The autopilot can be disengaged manually when:
After GS is captured and the aircraft is below _____, the flight guidance is transferred to the PFCC for precision ILS approach capability. APPR LOC is displayed in green on the FMA.
Heading synchronization is automatic in any of the conditions that follow:
During an Autoland, FLARE mode is activated, the ROLLOUT mode is armed and the landing flare starts:
RETARD mode is activated and the throttles are reduced to flight idle below 20 ft AGL.