AIRCRAFT SYSTEMS - e-Crew

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A330/A340 FLIGHT CREW OPERATING MANUAL AIRCRAFT SYSTEMS AUTO FLIGHT - FLIGHT GUIDANCE AP/FD COMMON MODES - APPROACH DISENGAGEMENT CONDITIONS OF LOC AND G/S MODES If the aircraft is above 400 ft, the ILS APPR mode disengages when the: ‐ Flight crew presses the APPR pb , the system reverts to HDG V/S or TRK FPA basic modes ‐ Flight crew presses the LOC pb , the LOC mode remains engaged. The FMGES reverts to V/S (FPA), if G/S was engaged ‐ Flight crew pulls the HDG/TRK knob, the FMGES reverts to HDG V/S or TRK FPA basic modes ‐ Go-around engages ‐ LOC or G/S signal has been lost for 7 s or more above 200 ft RA. AP/FDs disengage and FDs reengage in basic modes (HDG V/S or TRK FPA). DISENGAGEMENT CONDITIONS OF G/S ONLY ‐ The flight crew pulls up the V/S / FPA knob. LOC mode remains engaged but G/S mode disengages, and V/S or FPA engages. ‐ The flight crew pushes or pulls the ALT knob. LOC mode remains engaged and the mode selected by the flight crew engages, as a function of the FCU selected altitude. LOC CAPTURE ASSISTANCE FUNCTION In NAV mode, and when within 20 nm of the destination runway, the aircraft is guided with a track angle of 20 ° from the LOC axis. This helps the aircraft intercept and capture the LOC beam. When the ILS frequency or the ILS ident entered on the RAD NAV page differs from the ILS of the destination runway entered in the Flight Plan: ‐ The aircraft loses the LOC capture assistance function ‐ The "RWY/ILS MISMATCH" message is displayed on the scratchpad ‐ The flight crew should select HDG mode to perform the LOC capture. Note: There is no glideslope capture assistance. The flight crew ensures that the flight path of the aircraft intercepts the G/S beam for G/S* engagement. LAND MODE ENGAGEMENT CONDITIONS LAND mode automatically engages when the LOC and G/S modes are engaged and the aircraft is below 400 ft RA. The FMA displays "LAND", indicating that LOC and G/S are locked. No action on the FCU disengages LAND mode. FLARE and ROLL OUT modes successively engage. RJA A330/A340 FLEET DSC-22_30-80-30-10 P 4/8 FCOM ← A → 30 MAY 12
A330/A340 FLIGHT CREW OPERATING MANUAL DISENGAGEMENT CONDITIONS AIRCRAFT SYSTEMS AUTO FLIGHT - FLIGHT GUIDANCE AP/FD COMMON MODES - APPROACH LAND mode disengages: ‐ Upon engagement of the go-around mode ‐ If the flight crew presses the APPR pb, when the aircraft has been on ground for at least 10 s with the autopilot disconnected. Note: When LAND is not displayed on the FMA at/or slightly below 400 ft, the landing capability degrades to CAT 1 and an aural triple click is generated. Autoland is not allowed with CAT 1 displayed on the FMA. FLARE MODE Once the aircraft reaches approximately 55 ft RA (the precise value is a function of V/S): ‐ FLARE mode engages ‐ The FMA displays “FLARE” in green. Around 45 ft RA, the AP/FD aligns the yaw axis with the runway centerline and the aircraft starts to flare on the pitch axis. If the autothrust is active, thrust is automatically reduced to IDLE during flare (Refer to DSC-22_30-90-C A/THR Modes - RETARD Mode). When both AP/FDs are disengaged, FLARE mode disengages. After main landing gear touchdown, the autopilot (if engaged) sends a nose down order. ALIGN SUB-MODE ALIGN is a sub-mode of LAND that lines up the aircraft’s axis with the ILS course at approximately 45 ft. Align sub-mode is not displayed to the flight crew. Note: Align sub-mode is often known as "decrab" function. ROLL OUT MODE At touchdown, ROLL OUT mode engages and guides the aircraft along the runway centerline. The FMA displays “ROLL OUT” in green, and the PFD displays the yaw bar and no FD bars. RJA A330/A340 FLEET DSC-22_30-80-30-10 P 5/8 FCOM ← A 30 MAY 12
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