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

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 :

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

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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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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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

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

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 :