A320 AUTOMATION.pdf

SPEED

G/S

LOC

CAT3 DUAL DH 20

START OF APPROACH

AP1+2 1FD2 A/THR

• LVP IN FORCE • 2 PILOTS • DH DETERMINED BY RA • ACFT CERTIFIED (INCL.MEL)

ABOVE 1000 RA APPROACH BAN RV BE R MA YB LO W RV MIN E RM US TB EA TL EA ST

1000 RA

PNF: „ONE THOUSAND STABILIZED”

900 RA RV R MIN

TCAS - TA ONLY

700 RA

LB

EL OW

MIN

DOWNGRADING FROM CAT2 TO CAT1 ECAM actions completed RVR at least CAT I minima at least one FD available briefing amended to include CAT I procedure and MDA

DATA LOCK (ILS TUNE INHIBIT) ILS frequency and course are frozen in the receiver. Available when at least one AP/FD is engaged

FIVE HUNDRED PF: „FIVE HUNDRED” PNF: „CLEARED TO LAND/NO CLEARANCE”

ADVISE ATC WHEN AUTOLAND IN CAT I

• • • •

LDG INHIBIT

800 RA MA YF AL

ONE THOUSAND

DOWNGRADING FROM CAT3 TO CAT2 • ECAM actions completed • RVR at least CAT II minima • briefing amended to include CAT II procedure and DH

AUTOLAND WARNING Flashes with LAND or FLARE mode on the FMA when the aircraft is below 200 ft RA and on of the following occurs: AUTO • both AP lost (fail) loss of LOC signal above 15 ft (transmitter or receiver) • LAND • loss of G/S signal above 100 ft (transmitter or receiver) • aircraft gets too far of the beam (LOC and/or G/S flash on PFD) • difference between both Radio Altimeters (RA) greater than 15 ft RA

LOC 1 DOT = 0.8° WARNING OF EXCESSIVE BEAM DEVIATION This warning is a flashing of LOC and/or G/S scales on the PFD and ND ROSE ILS if: • LOC deviation is greater than 1/4 dot (above 15 RA) • G/S deviation is greater than 1 dot (above 100 RA) Note: LAND mode remains engaged. FAILURE OF BOTH LOC AND G/S RECEIVERS The PFD and ND ROSE ILS display red LOC and G/S flags (if LS pb pressed in). LOC LOC and G/S scales disappears from PFD. If LOC and G/S modes are engaged and at least on AP/FD engaged: • AP disengages • FD reverts to basic HDG-V/S or TRK-FPA modes FAILURE OF LOC AND/OR G/S TRANSMITTER (if captured): • the corresponding index is lost • LOC and/or G/S scales flash • the corresponding FD bars flash

A320 LOW VISIBILITY MEMO APRIL 2011 © ANDRZEJ BRONOWICKI

G / S

500 RA 400 RA

FCU IS FROZEN

350 RA

LAND

CAT3 DUAL DH 20

PF: „LAND”

TRANSMITTER FAILURE ABOVE 200 FT RA If transmitter failure lasts HUNDRED ABOVE • less than 7 sec: • FMA retains LOC and G/S (or LAND) and AP is able to regain these modes • If transmitter failure lasts • more than 7 sec: • AP disengages and FD returns to its basic modes • (HDG-V/S)

NO FMA DOWNGRADING FOR FAILURES: BSCU ch NO ROLLOUT A/SKID DH = 50 ft (CAT3SINGLE) NSW MID RVR = 125 m 2 BSCU: 1 BSCU - 2 channels NO MASTER CAUTION NO ECAM STS A/SKID - NSW: ECAM STS CAT3SINGLE FOR DISPATCH CAT2 ONLY (MEL)

DECISION HEIGHT DH is the wheel height above the runway elevation by which a goaround must be initiated unless adequate visual reference has been established and the aircraft position and approach path have been assessed as satisfactory to continue the approach and land in safety.

LAND MODE Engages automatically when acft reaches 400 RA (350 RA latest) during approach only when LOC and G/S modes are engaged. The FMA displays LAND indicating that LOC and G/S are locked. LAND mode arms FLARE and ROLLOUT (not annunciated on FMA).

SPEED

TRANSMITTER FAILURE BELOW 200 FT RA If transmitter failure occurs: AUTOLAND warning appears indicating performing of GO AROUND must be initiated with 1 or 2 AP engaged

ALERT HEIGHT AH is the height above the runway, based on the characteristics of the airplane and its fail operational system, above which, for a CAT III approach a go around must be initiated if a failure occurs in one of the redundant parts of the automatic landing system, or in the relevant ground equipment - AUTOLAND light triggered. For A320 the Alert Height is 100 ft RA

200 RA

If A/THR is lost below 1000 RA - GO AROUND, then only CAT II approach is allowed. If A/THR disconnects below 100 RA then continue with THR LOCKED. MABH - Minimum Approach Break-off Height is the lowest height of the wheels above the runway at which it is demonstrated that a goaround can be carried out without external visual references according to the standard procedure, with an acceptable level of safety. For A320 MABH is 20 ft (EU-OPS)

ILS COURSE CHECK

AP1+2 1FD2 A/THR

FMGS freezes landing capability until LAND MODE disengages (both AP OFF) - FMA remains. Below AH single AP failure (downgrading from two AP to one) is not indicated - no FMA downgrading.

AUTOLAND LT IS ENGAGED (if at least one AP on)

DH

MINIMUM

VIS REFERENCE OR GO AROUND

PNF: „ONE HUNDRED ABOVE” „MINIMUM” PF: „CONTINUE/GO AROUND”

100 RA

CAT3SINGLE CAT2

ALERT HEIGHT

PF: „CONTINUE/GO AROUND” FLARE steering MODE

RETARD MODE Available only during autoland: AP engaged in LAND. At approx. 40 RA RETARD MODE engages and remains engaged after touchdown. A/THR commands IDLE thrust during flare and FMA displays IDLE (also on E/WD).

ONE HUNDRED

CAT3DUAL

LOW ENERGY WARNING INHIBITION (AVAIL 2000 100 RA)

BELOW 100 RA AUTOLAND LT ONLY

A.FLOOR INHIBITION (AVAIL UNTIL 100 RA)

FLARE MODE Engages automatically at 30 RA latest(function of V/S).

FIFTY

50 RA

PWS & RWS INHIBITION (AVAIL 1300 - 50 RA)

BELOW 1000 FT AND ABOVE DH → CAT2 OR CAT3SINGLE ABOVE AH → CAT3DUAL GO AROUND MUST BE PERFORMED IN CASE OF: • ALPHA FLOOR ACTIVATION • LOSS OF AP (CAVALRY CHARGE) • DOWNGRADING CAPABILITY (TRIPLE CLICK) • MASTER CAUTION (AMBER) + SINGLE CHIME • ENGINE FAILURE • NO LAND MODE @ 350 RA • ATC ORDER • TWR WIND COMPONENT EXCEEDED

SPEED

40 RA

FLARE

CAT3 DUAL DH 20

FORTY

30 RA I AC F DH HIE : V VE IS R DA E ND FER MA ENC INT E AIN ED

THIRTY

AP1+2 1FD2 A/THR

PNF: „FLARE/NO FLARE” GO AROUND THRUST - TOGA FLAPS - 1 STEP PITCH INITIALLY 15˚

TWENTY TEN

10 RA

MAN TOGA

SRS CLB

If AP is disengaged during flare before touchdown SPEED mode replaces RETARD mode manually reduce thrust. Note: In autoland the system generates RETARD callout at 10 ft RA in order to prompt pilot to move thrust levers to idle in order to confirm thrust reduction. PNF: „ROLLOUT/NO ROLLOUT” In manual landing the system generates RETARD callout only as a remainder. ROLL OUT MODE At touchdown ROLL OUT mode engages and guides the aircraft along runway centerline. The FMA displays ROLL OUT in green. The PFD displays the YAW BAR and no FD bars.

GA TRK NAV

AP1+2 1FD2 A/THR

RETARD

ROLLOUT

CAT3 DUAL DH 20

AP1+2 1FD2