a330-unreliable speed indication
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LR
UNRELIABLE SPEED INDICATION
LR - Version 01e
IAS Fluctuations
Flight parameters abnormal correlation
Abnormal AP/FD/ATHR behavior
Undue stall warning or overspeed warning
When indicated speed aerodynamic noise
When indicated speed aerodynamic noise
Suspect unreliable
speed indication
WrongWrongAP / FD
WrongOKFPV
WrongOKV/S
WrongOKALT
WrongWrongIndicated speed / Mach
staticPitotFailure
Probes schematic
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LR
1. PITOT PROBES BLOCKED
FLIGHT IS FROZEN TO PERMIT THE PROCEDURE APPLICATION ON THE M/FTD
DETECTION
FLIES THE AIRCRAFT
NAVIGATES
CONSIDER AUTOMATION USE
ECAM ACTIONS
DECISION
ECAM PROCEDURE
SYSTEM DISPLAY
STATUS
RETURN TO NORMAL TASK SHARING
LD G D I S T
LDG DIST
WEATHER
WEATHER
OPERATIONAL AND
COMMERCIAL
CONSIDERATIONS
OPERATIONAL AND
COMMERCIALCONSIDERATIONS
NOTIFY
NOTIFY
DECISION
DECISION
OPS
OPS
PURSER /PAX
PURSER /PAX
ATC
ATC
STATUS,or
SUMMARY
PF
COMMUNICATES
Check IAS indications
All indications may be consistent
BUT equally unreliable!
ALT
V/S
FPV
Remain correct
in this case
A330 / A340-600 : A340-300 :
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LR
PROBES SCHEMATIC
ADR 1 ADR 3 ADR 2
Normal display
Reconfigurations
CAPT
probes
STBY
probes
F/O
probes
PFD 1 PFD 2
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LR
1. PITOT PROBES BLOCKED
FLIGHT IS FROZEN TO PERMIT THE PROCEDURE APPLICATION ON THE M/FTD
DETECTION
FLIES THE AIRCRAFT
NAVIGATES
CONSIDER AUTOMATION USE
ECAM ACTIONS
DECISION
ECAM PROCEDURE
SYSTEM DISPLAY
STATUS
RETURN TO NORMAL TASK SHARING
LD G D I S T
LDG DIST
WEATHER
WEATHER
OPERATIONAL AND
COMMERCIAL
CONSIDERATIONS
OPERATIONAL AND
COMMERCIALCONSIDERATIONS
NOTIFY
NOTIFY
DECISION
DECISION
OPS
OPS
PURSER /PAX
PURSER /PAX
ATC
ATC
STATUS,or
SUMMARY
PF
COMMUNICATES
Check the 3 airspeed indications
All indications may be consistent
BUT equally unreliable!
ADR 1
ADR 3
ADR 2
SPEED > VFEFWC
SPEED > VFE OR
SPEED > VFE
At least one ADR speed > VFE or VMO/MMO OVERSPEED warning
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFA330/A340-600
UNRELIABLE SPEED INDICATION
MEMORY ITEMSBelow THR RED ALT: TOGA/15
THRUST/PITCH Above THR RED ALT: CL/10 Below FL 100
CL/5 Above FL 100
AP.OFF
FD.OFF
A/THR..OFF
FLAPSMAINTAIN CURRENT CONFIG
SPEEDBRAKESCHECK RETRACTED
L/G.UP WHEN AIRBONE
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFA340-300
UNRELIABLE SPEED INDICATION
MEMORY ITEMSBelow THR RED ALT: TOGA/12.5
THRUST/PITCH Above THR RED ALT: CL/10 Below FL 100
CL/5 Above FL 100
AP.OFF
FD.OFF
A/THR..OFF
FLAPSMAINTAIN CURRENT CONFIG
SPEEDBRAKESCHECK RETRACTED
L/G.UP WHEN AIRBONE
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LRCommon LR
1. PITOT PROBES BLOCKED
FLIGHT IS FROZEN TO PERMIT THE PROCEDURE APPLICATION ON THE M/FTD
DETECTION
FLIES THE AIRCRAFT
NAVIGATES
CONSIDER AUTOMATION USE
ECAM ACTIONS
DECISION
ECAM PROCEDURE
SYSTEM DISPLAY
STATUS
RETURN TO NORMAL TASK SHARING
LD G D I S T
LDG DIST
WEATHER
WEATHER
OPERATIONAL AND
COMMERCIAL
CONSIDERATIONS
OPERATIONAL AND
COMMERCIALCONSIDERATIONS
NOTIFY
NOTIFY
DECISION
DECISION
OPS
OPS
PURSER /PAX
PURSER /PAX
ATC
ATC
STATUS,or
SUMMARY
PF
COMMUNICATES
Check IAS indications
All indications may be consistent
BUT equally unreliable!
ALT
V/S
FPV
Remain correct
in this case
A330 / A340-600 : A340-300 :
QRH
2.00
ADR check proc
&
Unreliable speed
indication
Revert to pitch / thrust setting
references
Any doubt regarding speed indication
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7/31/2019 A330-Unreliable Speed Indication
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PFPF PNFPNFCommon LR1. PITOT PROBES BLOCKED
FLIGHT IS FROZEN TO PERMIT THE PROCEDURE APPLICATION ON THE M/FTD
DETECTION
FLIES THE AIRCRAFT
NAVIGATES
CONSIDER AUTOMATION USE
ECAM ACTIONS
DECISION
ECAM PROCEDURE
SYSTEM DISPLAY
STATUS
RETURN TO NORMAL TASK SHARING
LD G D I S TLDG DIST
WEATHERWEATHER
OPERATIONAL AND
COMMERCIAL
CONSIDERATIONS
OPERATIONAL AND
COMMERCIALCONSIDERATIONS
NOTIFYNOTIFY
DECISIONDECISION
OPS OPS
PURSER /PAXPURSER /PAX
ATCATC
STATUS,or
SUMMARY
PF
COMMUNICATES
Check IAS indications
All indications may be consistent
BUT equally unreliable!
ALT
V/S
FPV
Remain correct
in this caseALT
GSAvailable on GPS
A330 / A340-600 : A340-300 :
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