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-If VNAV has been selected, the FMS may select the altitude hold mode -Altitude PreSelect is changed during ALTS track state -While in ALTS track, a change of the FMS VNAV altitude if the VNAV altitude is the target. Altitude Hold is auto- matically selected as the active mode Altitude Hold Mode can be deselected, as follows: -Turning Off the Flight Directors, while the AP is disengaged -Another active vertical mode is selected -If VNAV has been selected, the FMS may select another active vertical mode -Another vertical mode is automatically captured, becoming the active mode -The ALT mode button on FGP is pressed -Changing coupled side This mode is annunciated by a green ALT in the vertical capture field. TAKEOFF MODE Prior to takeoff, the vertical takeoff mode is selected when either TOGA switch is pressed and the flaps are set to a takeoff setting. A green TO message is displayed in the active vertical field. This mode generates a pitch up command that is cal-culated when the pilot enters V2 and VR values in the REFS 1/3 page or via the FMS TAKEOFF REF page. Loss of an engine reduces the pitch up command appropriately. If V2 and VR are not entered when the TOGA switch is pushed, the command bars are removed from the display. GO-AROUND MODE (GA) Go-around (GA) mode is selected by pushing one of throttle-mounted TOGA buttons while airborne. Selection of GA mode turns on both flight directors, disengages the autopilot (but not the yaw damper), clears all other vertical modes (ex-cept overspeed), and switches the flight guidance commands to a dual-independent configuration. This mode is cleared by: -Turning off the flight directors -Engaging the autopilot -Selecting another vertical mode -Pressing AP/FD SYNC button -Rotating the UP/DOWN wheel, which selects Pitch Hold The GA Mode generates a 10° pitch up command. This mode is annunciated by a green GA in the lateral and vertical capture field. Sep 13/2004 Flight Crew Operating Manual Volume 2 REV 1 CSP 100-6 04-01-17
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