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maximum reverse
thrust is selected at landing.
LDG CONF / APPR SPD / LDG DIST COMPUTATION FOR A SINGLE
FAILURE
Determine the FLAPS lever position for landing to be selected
Compute the VAPP: VAPP = VREF + Δ VREF + APPR COR
‐ Determine the Δ VREF
‐ Determine the APPRoach CORrection (Refer to ABN-80 VAPP
CALCULATION)
Compute the LDG DIST:
‐ Determine the LDG DIST factor. Multiply it by the additional factor, if any (Refer
to ABN-80 VAPP
CALCULATION)
‐ Multiply the obtained LDG DIST factor by the ACTUAL LANDING DISTANCE
WITHOUT AUTOBRAKE
– CONFIGURATION FULL – without reversers correction (Refer to FPE-IFL
Landing Distance Without
AUTOBRAKE - CONF FULL)
LDG CONF / APPR SPD / LDG DIST COMPUTATION FOR MULTIPLE
FAILURES
Only combine PRIMARY or SINGLE failures
Determine the Flaps lever position for landing to be selected:
‐ Use the lowest Flaps Lever Position for landing(i.e. if FULL and 3, use 3)
Compute the VAPP: VAPP = VREF + Δ VREF + APPR COR
Use the highest Δ VREF ‐ to compute VAPP
‐ Determine the APPRoach CORrection (Refer to ABN-80 VAPP
CALCULATION)
Compute the LDG DIST:
‐ Determine the applicable LDG DIST factors in the same column (“WITH REV.”
or “WITHOUT REV.”)
‐ Multiply the applicable LDG DIST factors together, unless all values are marked
with an asterisk (*). If
all values are marked with an asterisk, use the highest LDG DIST factor. Multiply it
by the additional
factor, if any (Refer to ABN-80 VAPP CALCULATION)
‐ Multiply the obtained LDG DIST factor by the ACTUAL LANDING DISTANCE
WITHOUT AUTOBRAKE
– CONFIGURATION FULL – without reversers correction (Refer to FPE-IFL
Landing Distance Without
AUTOBRAKE - CONF FULL)
Examples applicable to Dry runways / A/THR ON / No wind / WITHOUT
REV./Without ice accretion:
FAILURES Flaps Lever Position
For Landing Δ VREF APPR COR Additional
Factor LDG DIST Factor
FLAPS FAULT
(F < 3, S ≥ 1) 3 10 1.35*
BRK ANTI SKID FU3LL 1-0 12..0705
RESULT 3 10
5 1.1
1.40×1.90×1.1=3.00
VREF = 131 kt. Therefore VAPP = 131+10+5= 146 kt.
ABN-80
17/32
AQU3I1CK8 R/AEF3E1RE9N/ACE3 H2A0ND/A B3O2OK1
ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET ,
FAILURES Flaps Lever
Position for Landing Δ VREF APPR COR Additional
Factor LDG Factor
ALTN LAW 3 10 1.35*
FLAPS FAULT
(F < 1, S ≥ 1) 3 25 1.65*
RESULT 3 25
0 N/A
1.65
VREF = 140 kt. Therefore VAPP =140+25 =165 kt.
LDG CONF/APPR SPD/LDG DIST ON DRY RUNWAYS FOLLOWING
FAILURES - INTRODUCTION
Multiply the LDG DIST factors by the ACTUAL LANDING DISTANCE DRY
WITHOUT AUTOBRAKE -
CONFIGURATION FULL - without any reversers correction (Refer to FPE-IFL
Landing Distance Without
AUTOBRAKE - CONF FULL).
ABN-80
18/32
AQU3I1CK8 R/AEF3E1RE9N/ACE3 H2A0ND/A B3O2OK1
ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET ,
LDG CONF/APPR SPD/LDG DIST ON DRY RUNWAYS FOLLOWING
FAILURES
DRY RUNWAYS
LDG DIST Factors
SYS FAILURE FLAPS LEVER
POSITION FOR LDG
Δ VREF APPR
SPD INCREMENT DRY WITHOUT
REV. (2) DRY WITH REV
AC BUS 1 (1) FULL
3-
10
1.20
1.35
1.20
1.35
DC BUS 2 (1) FULL
3-
10
1.30
1.40
1.35
1.40
DC ESS BUS (1)
if there is no ice
accretion
FULL
3
-
10
1.20
1.35
1.20
1.35
DC ESS BUS (1)
if there is ice
accretion
FULL
3
10
20
1.35
1.50
1.35
1.50
DC ESS SHED BUS
(1)
if there is ice
accretion
FULL
3
10
20
1.35
1.50
1.25
1.40
DC EMER CONF (1) FULL
3-
10
3.40
3.25
3.40
3.25
DC BUS 1 + 2 (1) FULL
3-
10
2.10
2.30
N/A
N/A
ELEC
EMER ELEC CONF 3 10 3.25 N/A
(1) Flaps FULL and Flaps 3 are both acceptable positions. Flaps FULL is
recommended, but the flight crew may use Flaps 3, if
necessary, for operational reasons.
(2) In case of dispatch with one or more reverser(s) inoperative, use the LDG DIST
factors ″WITHOUT REV.″, whatever the actual
thrust reversers selection at landing.
FLAPS and SLATS at zero 1 60 (APPR)
50 (THRESHOLD) 2.10* 1.95*
FLAPS < 1 S<1
S≥1
33
45
25
2.00*
　
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