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selected as the active mode -If ALTS is tracking the flight plan target altitude and VNAV is deselected, altitude hold shall be the active mode. -Activation of Vertical APPR Capture/Track states -Selection of any other active vertical mode
Altitude select mode generates commands to capture and track selected altitude displayed on the PFD. During the altitude capture maneuver, or after being established on the selected altitude (altitude track), if the selected altitude is changed, the altitude hold mode is automatically selected. A deselection of vertical navigation mode, while capturing/tracking an FMS altitude, will also select altitude hold mode. In addition to altitude preselect being set with the altitude preselect knob, a FMS flight path target altitude can be programmed for use with VNAV. In the VNAV glide path capture mode, capturing the preselected altitude is prohibited.
May 06/2005 Flight Crew Operating Manual Volume 2 REV 2 CSP 100-6
04-01-15
FLIGHT DIRECTOR VERTICAL MODES (Cont)
When the closest altitude being approached is the preselected altitude, altitude preselect is annunciated on the PFD in one of the following ways:
-ALTS in white color in the vertical arm field — arm
-ALTS CAP in green color in the vertical capture field — capture
-ALTS in green color in the vertical capture field — track
When the closest altitude being approached is the FMS altitude, altitude select is annunciated on the PFD in one of the following ways:
-ALTV in white color in the vertical arm field — arm
-ALTV CAP in green color in the vertical capture field — capture
-ALTV in green color in the vertical capture field — track
Volume 2 Flight Crew Operating Manual May 06/2005 CSP 100-6 REV 2
04-01-16
FLIGHT DIRECTOR VERTICAL MODES (Cont)
ALTITUDE ALERT SYSTEM
The altitude alert system provides aural and visual indications of the preselected altitude capture and tracking. It also pro-vides audio and visual indications of altitude deviation from the preselected altitude.
The altitude alerting system processes data from the ADCs and is independent of the flight director or autopilot modes.
At approximately 1000 feet prior to the preselected altitude, an aural tone and flashing altitude preselect digits advises the pilot of impending level off. If the flight director is tracking a preselected altitude and the aircraft subsequently deviates more than 200 feet from the selected altitude, the altitude bugs flashes and a series of tones are produced.
If the aircraft continues to deviate uncorrected, at ± 1000 ft. from the selected altitude, the altitude bugs and digital readout flash amber and audible tones are produced.
(ALT) MODE
Selection of Altitude Hold Mode occurs due to one of the following:
-Pressing the ALT button on the FGP, except that ALT HOLD is inhibited when in glideslope capture
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