JANUARY 2012 FLIGHT AIRWORTHINESS SUPPORT 49 TECHNOLOGY FAST AIRBUS TECHNICAL MAGAZINE FAST 49 FAST JANUARY 2012 4049JULY 2007 FLIGHT AIRWORTHINESS SUPPORT TECHNOLOGY Customer Services Events Spare part commonality Ensuring A320neo series commonality 2 with the existing A320 Family AIRBUS TECHNICAL MAGAZINE Andrew James MASON Publisher: Bruno PIQUET Graham JACKSON Editor: Lucas BLUMENFELD Page layout: Quat’coul Biomimicry Cover: Radio Altimeters When aircraft designers learn from nature 8 Picture from Hervé GOUSSE ExM Company Denis DARRACQ Authorization for reprint of FAST Magazine articles should be requested from the editor at the FAST Magazine e-mail address given below Radio Altimeter systems Customer Services Communications 15 Tel: +33 (0)5 61 93 43 88 Correct maintenance practices Fax: +33 (0)5 61 93 47 73 Sandra PREVOT e-mail: [email protected] Printer: Amadio Ian GOODWIN FAST Magazine may be read on Internet http://www.airbus.com/support/publications ELISE Consulting Services under ‘Quick references’ ILS advanced simulation technology 23 ISSN 1293-5476 Laurent EVAIN © AIRBUS S.A.S. 2012. AN EADS COMPANY Jean-Paul GENOTTIN All rights reserved. Proprietary document Bruno GUTIERRES By taking delivery of this Magazine (hereafter “Magazine”), you accept on behalf of your company to comply with the following. No other property rights are granted by the delivery of this Magazine than the right to read it, for the sole purpose of information. The ‘Clean Sky’ initiative This Magazine, its content, illustrations and photos shall not be modified nor Setting the tone 30 reproduced without prior written consent of Airbus S.A.S. This Magazine and the materials it contains shall not, in whole or in part, be sold, rented, or licensed to any Axel KREIN third party subject to payment or not. This Magazine may contain market-sensitive or other information that is correct at the time of going to press. This information involves Eric DAUTRIAT a number of factors which could change over time, affecting the true public representation. 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Around the world Toulouse (France) without prejudice to the right of Airbus to bring proceedings for infringement of copyright or any other intellectual property right in any other court of competent jurisdiction. Airbus, its logo, A300, A310, A318, A319, A320, A321, A330, A340, A350, A380 and A400M are registered trademarks. This issue of FAST Magazine has been printed on paper produced without using chlorine, to reduce Photo copyright Airbus Photo credits: waste and help conserve natural resources. Airbus Photographic Library, ExM Company, Airbus France, Getty Images Every little helps! FAST 49 1 SPARE PART COMMONALITY - ENSURING A320NEO SERIES COMMONALITY WITH THE EXISTING A320 FAMILY Spare part commonality Ensuring A320neo series commonality with the existing A320 Family Commonality is one of the key drivers of the The A320neo series is a programme which uses A320neo development. The A320neo series, innovative new engine and aero-structural where neo stands for ‘new engine option’, has a technologies to provide a significant improvement target of over 95% spare parts commonality with in performance for the A319, A320 and A321 the existing models, enabling the new aircraft to aircraft. Whilst striving to deliver this benefit to fit seamlessly into existing A320 Family fleets the operators, Airbus is also keen on minimizing and customers’ operations. This will help airlines the changes to a proven product. Changing only to achieve significant savings in the areas of what is necessary to integrate the new engines, Initial Provisioning (IP) investment and keeping the rest of the aircraft in harmony with maintenance training, compared to an all new the operators’ existing economic and logistical aircraft series. models, can ensure the future operators a simpler, lower cost service entry. Andrew James MASON Graham JACKSON Project Manager New Programmes IP A320neo Operability Airbus Material, Logistics and Suppliers Technical Integrator Airbus Engineering FAST 49 2 SPARE PART COMMONALITY - ENSURING A320NEO SERIES COMMONALITY WITH THE EXISTING A320 FAMILY 20 20 20 20 20 20 3 3 3 A3 A3 A3 A3 A3 A3 OVERALL RSPL INVESTMENT Key drivers of the notes A320neo The overall RSPL investment was RSPL (Recommended Spare Parts development setatthesamelevelforthe List) A320neo series as for the standard Airbus provides customers with A320 Family aircraft. It was then Spares’ investment and services material provisioning data broken down to individual com- have a huge impact on the lifecycle concerning spares’ holdings for ponents, in order to ensure that cost of an aircraft. In recognition of a given fleet based on customized both component reliabilities and this, Airbus has set clear targets for parameters. This list gives contractual agreements with the A320neo development to drive recommendations for the suppliers don’t increase the overall cost factors such as spares’ unscheduled maintenance planning quantity and cost of parts in the investment and commonality du- for the first year of operation. RSPL. ring the aircraft definition phase. This includes the specific objectives on both commonality and overall RSPL* investment. FAST 49 3 SPARE PART COMMONALITY - ENSURING A320NEO SERIES COMMONALITY WITH THE EXISTING A320 FAMILY COMMONALITY STUDIES Generation of a The 95% commonality of parts Recommended defined in Airbus’ objectives is not Spare Parts List just a marketing figure. An initial verification exercise has been (RSPL) conducted to ensure that it is measurable, achievable and value To generate RSPLs as a basis of adding. The following sections comparison, key assumptions were define how this was carried out. defined relating to the fleet size, aircraft utilisation, logistics and Airbus has compared the standard economics. The assumptions are engine variants, CFM (joint based on experience with all venture between General Electric Airbus operators and represent the and SNECMA) and IAE (Inter- average A320 Family mission. national Aero Engines), with both ‘neo’ engine variants - ‘CFM Leap Four RSPLs were generated based X’ and ‘PW1100G’, as shown in upon the defined assumptions and figure 2. The operators of both using the same methodology as a standard engine variants have typical customized airline’s RSPL expressed an interest in both new for the following configurations: engine options, meaning all fleet combinations must be considered. • A320 CFM56-5B Variant, • A320 IAE V2500 Variant, The technical scope of the • A321 CFM56-5B Variant, assessment covers the whole • A321 IAE V2500 Variant. airframe, including all systems impacted by the introduction of the Recommended new engines, but excluding the engines and nacelles themselves. Spare Parts List: Airframe spare part commonality study The analysis does not consider Short-listing considering A320 with different engine variants structural parts. Figure 2 The Recommended Spare Parts List contains a huge range of different parts from large assem- blies such as an APU (Auxiliary Power Unit) to small ‘nuts and bolts’. It is critical to filter these parts to get a representative view of the commonality, as hundreds of small standard hardware part numbers with very small financial impact can falsify the results. Airbus therefore considered the number of recommended parts, multiplied by the respective part number price, to determine the spares’ financial impact of each part. Through this exercise, standard simple items such as filters, light bulbs, placards, seals, switches and sensors with little financial impact, are removed from the calculation allowing the exercise to focus on the valuable and high impact items. FAST 49 4 SPARE PART COMMONALITY - ENSURING A320NEO SERIES COMMONALITY WITH THE EXISTING A320 FAMILY Parts’ • 1. Fully common • 2. Partially common - hardware commonality only common* identification • 3. Partially common - notes interchangeable (‘neo’ to standard) Software update is required. The commonality of each part on • 4. Non-common It allows the existing hardware the short-listed RSPL has been The suitability of existing A320 to be embodied on both the pre determined for the A320neo series Family parts for application on the and post ‘neo’ aircraft series. baseline designs for all engine ‘neo’ series is continuously being variants. The determined commo- assessed to capitalize on the nalities have been graded using the commonality opportunities. following categories (see figure 3): Parts commonality identification Figure 3 FAST 49 5 SPARE PART COMMONALITY - ENSURING A320NEO SERIES COMMONALITY WITH THE EXISTING A320 FAMILY Commonality SOME EXAMPLES feasibility study A320neo series’ commonality can results be seen