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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
Engine Maintenance and Fuel
Burn
IATA Maintenance Cost Conference Atlanta 17-18 October 2012
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
INTRODUCTION
IATA MCC / 17-18October 2012 / Atlanta
A MAJOR CONCERN FOR AVIATION
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
FUEL PRICE INFLUENCE ON CASH DOC
IATA MCC / 24 25 October 2012 / Atlanta
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
ENGINE OPERATION AND FUEL BURN A FEW
QUESTIONS
Key parameter in reducing engine maintenance cost is time
on wing
Is it still true with rising fuel price?
Engine maintenance
What can be done in line maintenance to reduce fuel
consumption?
What maintenance policy should be followed by the operator to
minimize the
cost of operation?
How to decide of a work scope for an engine shop visit
Engineering expertise
IATA MCC / 24 25 October 2012 / Atlanta
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
TIME TO SV AND COST OF OPERATION
IATA MCC / 24 25 October 2012 / Atlanta
EGT deterioration limitation
Cumulative Fuel Burn
Deterioration
20 year number of Shop Visits
per Engine
Deterioration induced Fuel Burn
Cost
20 year Shop Visit expenses
20 year Operation Cost difference
60 3.41% 2 5,369,467 $ 8,000,000 $ Base
55 3.16% 3 4,979,172 $ 12,000,000 $ 3,609,705 $
50 2.95% 4 4,649,780 $ 16,000,000 $ 7,280,313$
Mission Length: 800 NM, Fuel cost per trip: 6,115$, Engine SV
Price: 2,000,000 $
Maximizing time on wing to reduce costs of operation
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
LINE MAINTENANCE: ENGINE CORE WASH
Washing regularly the core of the engine eliminates dirt
accumulating on
airfoils and impacting engine components efficiency
1 year interval minimum, 6 months recommended
10 to 20 benefit, lasting 1,000 to 2,000 hours
IATA MCC / 24 25 October 2012 / Atlanta
6 month washing
interval benefits:
0.5% Fuel Burn
~ 40,000$ fuel
expense reduction
per aircraft and
per year
A simple way to reduce fuel consumption
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
BEYOND LINE MAINTENANCE
Flight Operation
Taxiing
Take-off derate
Climb derate
Fleet management
Spare engine staggering
Engine Management Optimization
IATA MCC / 24 25 October 2012 / Atlanta
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
SHOP MAINTENANCE
Shop maintenance policy
Managing the time to the next Shop Visit
LLP Minimum Build
Performance restoration
Engine performance restoration
Core access
LP system access
IATA MCC / 24 25 October 2012 / Atlanta
Restoration level Cumulative Fuel Burn
Deterioration 20 year number of Shop
Visits per engine 20 year Fuel burn
difference
Light Restoration 3.50% 3 137,908 $
Performance Restoration
3.38% 2 Base
Extended Restoration 3.31% 2 -135,108 $
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
CONCLUSION
FUEL PRICE IS RISING
WATER WASHING THE ENGINES A VERY EFFICIENT WAY TO REDUCE
FUEL CONSUMPTION
DO NOT LOSE SIGHT OF OVERALL COST OF OPERATION:
SHOP VISIT ARE EXPENSIVE : SEEK EFFICIENCY AND LONG TIME TO
THE
NEXT SHOP VISIT
ENGINE FLEET MANAGEMENT CAN LOWER THE FLEE COS OF OPERATION
FLIGHT OPERATION MAY BRING A LOT OF FUEL SAVING
CLOSELY MONITOR OPERATIONAL DATA
A WEALTH OF SAVINGS LAY IN THEM
IATA MCC / 24 25 October 2012 / Atlanta
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This document and the information therein are the property of
Snecma, They must not be copied or communicated to a third party
without the prior written authorization of Snecma.
Thank You
Alain Beck
[email protected]
IATA MCC / 24 25 October 2012 / Atlanta
