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Circuit Breaker tripped
Yannick DUMOLLARDFlight Operations
A380 MMEL
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Aircraft dispatch
Impact on aircraft systems
ELEC C/B TRIPPED
Conclusion
1
2
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4
Contents
Dispatch with a Circuit Breaker tripped
A
IRB
US
S.A
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rights
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d. C
onfide
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ent.
Aircraft dispatch
Impact on aircraft systems
ELEC C/B TRIPPED
Conclusion
1
2
3
4
Contents
Dispatch with a Circuit Breaker tripped
A
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S.A
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Dispatch with a Circuit Breaker trippedPage 4
ELEC C/B TRIPPED
What is a C/B?
C/B (Circuit Breaker) represents following devices
Conventional circuit breaker
Remote Control Circuit Breaker (RCCB)
RCCB-C (Conventional RCCB)
RCCB-P (Programmable RCCB)
Solid State Power Control (SSPC)
Devices are fitted in:
Emergency Electrical Power Distribution Centre 2500VU
(EEPDC)
Primary Electrical Power Distribution Centre (PEPDC)
Secondary Electrical Power Distribution Centre (SEPDC)
APU control box (5000VE)
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Any tripped C/B is displayed in the cockpit by:
The ELEC C/B TRIPPED alert with
Its designation and FIN on the C/B SD page
Dispatch with a Circuit Breaker trippedPage 5
ELEC C/B TRIPPED
FIN: Functional Item Number
ELEC C/B TRIPPED
C/B
FUNCTIONAL DESIGNATION LOCATION FIN
FWD CAX FAN | PDMI | 1HU
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Dispatch with a Circuit Breaker trippedPage 6
ELEC C/B TRIPPED
Any tripped C/B is monitored for Maintenance crew by:
Maintenance message associated with affected
system
Protection Distribution Maintenance Interface (PDMI)
that provides C/B status (open, open-tripped,)
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Aircraft dispatch
Impact on aircraft systems
ELEC C/B TRIPPED
Conclusion
1
2
3
4
Contents
Dispatch with a Circuit Breaker tripped
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Dispatch with a Circuit Breaker trippedPage 8
Impact on aircraft systems
ELEC C/B TRIPPED
Case 1 - Associated with a cockpit effect
Another ECAM alert on affected systems
Amber indication (on SD, Overhead panel,)
Maintenance message (CMS Cockpit Items)
Case 2 - Associated with maintenance message only
CMS Pending Items
CMS Minor Items
Case 3 - Neither any cockpit nor maintenance message
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Aircraft dispatch
Impact on aircraft systems
ELEC C/B TRIPPED
Conclusion
1
2
3
4
Contents
Dispatch with a Circuit Breaker tripped
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Dispatch with a Circuit Breaker trippedPage 10
Aircraft dispatch
MMEL Entry ELEC C/B TRIPPED
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Dispatch with a Circuit Breaker trippedPage 11
Aircraft dispatch
Extract MMEL Items/Preamble/ECAM & CMS paragraph
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Dispatch with a Circuit Breaker trippedPage 12
Aircraft dispatch
MMEL Entry ELEC C/B TRIPPED
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Dispatch with a Circuit Breaker trippedPage 13
Aircraft dispatch
SIL 24-084 Information for dispatch with ELEC C/B TRIPPED
SIL provides table Tripped C/B & Possible effect
List of all C/Bs
Information on their affected systems
Aircraft dispatch conditions
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Aircraft dispatch
ELEC C/B TRIPPED
C/B
FUNCTIONAL DESIGNATION LOCATION FIN
TAIL CONE VENT FAN | PDMI | 800HR
ECAM alert
C/B SD page
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Dispatch with a Circuit Breaker trippedPage 15
Aircraft dispatch
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Dispatch with a Circuit Breaker trippedPage 16
Aircraft dispatch
ELEC C/B TRIPPED
C/B
FUNCTIONAL DESIGNATION LOCATION FIN
TAIL CONE VENT FAN | PDMI | 800HR
ECAM alert
C/B SD page
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Dispatch with a Circuit Breaker trippedPage 17
Aircraft dispatch
ELEC C/B TRIPPED
C/B
FUNCTIONAL DESIGNATION LOCATION FIN
FWD CAX FAN | PDMI | 1HU
ECAM alert
C/B SD page
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Dispatch with a Circuit Breaker trippedPage 18
Aircraft dispatch
ELEC C/B TRIPPED
C/B
FUNCTIONAL DESIGNATION LOCATION FIN
MFD F/O NORM | PDMI | 801WK
ECAM alert
C/B SD page
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Aircraft dispatch
Impact on aircraft systems
ELEC C/B TRIPPED
Conclusion
1
2
3
4
Contents
Dispatch with a Circuit Breaker tripped
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Dispatch with a Circuit Breaker trippedPage 20
Conclusion
MEL remains the reference to dispatch the aircraft
SIL 24-084 issued May 2010
Provides clear guidance for aircraft condition
assessment
Optimizes aircraft dispatch decision-making
ELEC C/B TRIPPED
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Dispatch with a Circuit Breaker trippedPage 21
AIRBUS S.A.S. All rights reserved. Confidential and
proprietary document.
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