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ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET
UNRELIABLE SPEED INDICATION/ADR CHECK PROC - MEMORY
ITEMS (Cont'd)
WHEN FLIGHT PATH IS STABILIZED
PROBE/WINDOW
HEAT........................................................................................................................ ON
TECHNICAL RECOMMENDATIONS:
‐ Respect Stall Warning
‐ To monitor speed, refer to IRS Ground Speed, or GPS Ground Speed variations
�� If remaining altitude indication is unreliable:
Do not use FPV and/or ‐ V/S, which are affected.
‐ ATC altitude is affected. Notify the ATC.
‐ Refer to GPS altitude: altitude variations may be used to control level flight, and is
an altitude
cue.R ‐ efer to Radio Altimeter.
CAUTION If the failure is due to radome destruction, the drag will increase and
therefore N1
must be increased by 5 %. Fuel flow will increase by about 27 %.
AFFECTED ADR IDENTIFICATION:
Crosscheck all speed indications and Refer to FPE-SPD Speeds
�� If at least one ADR is reliable:
Faulty
ADR(s).............................................................................................................................
OFF
REMAINING AIR
DATA.................................................................................................... CONFIRM
Alternate sources may be used to evaluate the air data:
‐ GPS altitude
‐ GPS and IRS Ground Speeds, taking into account altitude and wind effect.
�� If affected ADR(s) cannot be identified or all ADRs are affected:
ONE
ADR..........................................................................................................................
KEEP ON
Keep one ADR ON to maintain the STALL WARNING protection.
TWO
ADRs...............................................................................................................................
OFF
This prevents the flight control laws from using two coherent but unreliable ADR
data.
LDG CONF...................................................................................................................
USE FLAP 3
APP
SPD............................................................................................................................
VLS +10
LDG DIST
PROC...................................................................................................................
APPLY
Refer to ABN-80-B LDG CONF/APPR SPD/LDG DIST On Dry Runways Following
Failures - 34 -
NAV
�� To return to departure airport:
Keep takeoff configuration preferably.
Refer to ABN-34-C UNRELIABLE SPEED INDICATION/ADR CHECK PROC -
Approaches
(Pitch & Thrust Tables)
�� To accelerate and clean up after takeoff:
Accelerate and clean up the aircraft in level flight:
THRUST.........................................................................................................................
.... CLB
FLAPS.........................................................................................................................RE
TRACT
Retract from 3 or 2 to 1, once CLB thrust is set.
Retract from 1 to 0, when the aircraft pitch is lower than the pitch for S speed (Refer
to
ABN-34-C UNRELIABLE SPEED INDICATION/ADR CHECK PROC - Level-Off
(Pitch &
Thrust Table) )
Once in clean configuration, Refer to ABN-34-C UNRELIABLE SPEED
INDICATION/ADR
CHECK PROC - Climb/Cruise/Descent (Pitch & Thrust Tables) for flight
continuation.
To be continued on next page
ABN-34
7/8
AQU3I1CK8 R/AEF3E1RE9N/ACE3 H2A0ND/A B3O2OK1
ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET
UNRELIABLE SPEED INDICATION/ADR CHECK PROC - MEMORY
ITEMS (Cont'd)
�� Other cases:
Refer to ABN-34-C UNRELIABLE SPEED INDICATION/ADR CHECK PROC -
Climb/Cruise/Descent (Pitch & Thrust Tables) for flight continuation.
CLIMB
Set the thrust to CL.
CLEAN
Above 67 t 67 t-57 t Below 57 t
FL Speed Pitch (°)/Thrust (% N1)
Below FL 50 10.5/CLB 11.0/CLB 12.5/CLB
FL 50 - FL 100 10.5/CLB 10.0/CLB 11.0/CLB
FL 100 - FL 150 8.0/CLB 8.5/CLB 9.5/CLB
FL 150 - FL 200
250 kt
7.0/CLB 7.0/CLB 7.5/CLB
FL 200 - FL 250 5.0/CLB 5.0/CLB 5.0/CLB
FL 250 - FL 320 275 kt 3.5/CLB 3.5/CLB 3.5/CLB
Above FL 320 M 0.76 3.5/CLB 3.5/CLB 3.5/CLB
CRUISE
Adjust N1 to maintain approximate level flight with pitch attitude held constant.
When time permits,
(Refer to OPS SEVERE TURBULENCE) and adjust pitch to maintain level flight.
CLEAN
Above 67 t 67 t-57 t Below 57 t
FL Speed Pitch (°)/Thrust (% N1)
　
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