ASD-STAN PREN 4726-2017 Aerospace series - Acceptance parameters of aesthetical variations for all visible equipment installed in aircraft cabins under all contractual variations (.pdf

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1、 ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4726 Edition P1 2017-10 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer, 10/5 - B-1000 Brussels, Belgium - Tel +32 2 775 81 26 - Fax +32 2 775 81 31 - www.asd-stan.org ICS: Descriptor

2、s: ENGLISH VERSION Aerospace series Acceptance parameters of aesthetical variations for all visible equipment installed in aircraft cabins under all contractual variations Luft- und Raumfahrt Abnahmeparameter von sthetischen Qualittsabweichungen fr alle sichtbaren Flugzeug-Kabinenbauteile in allen v

3、ertraglichen Varianten Srie arospatiale Acceptation des variations esthtiques de laspect des lments visibles de cabine davion sous toute forme contractuelle This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of

4、 Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent

5、that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization)

6、for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that

7、: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-

8、STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, s

9、tored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1stOcto

10、ber 2017 Comments should be sent within six months after the date of publication to ASD-STAN General Domain prEN 4726:2017 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms, definitions and abbreviations . 4 3.1 Terms and definitions . 4 3.2 Abbreviations . 5 4 Definitions of

11、 cosmetic defects, inspection zones and criteria 6 4.1 Simplified definition of a cosmetic defect 6 4.2 Zonal type definition for installed parts . 6 4.2.1 Zone A 6 4.2.2 Zone B 7 4.2.3 Zone C 7 4.3 Classification of surfaces to be inspected . 7 4.4 Exception to classification of surfaces 18 4.5 Spl

12、it lines, definition, cutting and placement of decorative materials and sealing . 18 4.5.1 General . 18 4.5.2 General split line rules for decorative materials 19 4.5.3 Pattern alignment over two or more sheets / parts 19 4.5.4 Silicone sealant from the tube or any tube based application . 22 4.5.5

13、Sealing (hard seals e.g. “P” seals, blade seals etc.) . 23 4.6 Time limits and part appraisal 23 4.7 Distance from the test specimen 23 4.7.1 Distance at FAI-, source- and incoming inspection (general ruling) 23 4.7.2 Distance at FAL, final inspection and customer presentation . 23 4.8 Handling of h

14、igh end sensitive finishes . 23 4.9 Illumination . 24 4.9.1 General . 24 4.9.2 Additional light sources . 25 4.9.3 Surfaces 26 4.10 Non textile floor (NTF) . 28 4.10.1 Seller furnished equipment (from OEM perspective) non textile floor . 28 4.10.2 Buyer furnished equipment (from OEM perspective) non

15、 textile floor . 29 4.10.3 Definitions 29 4.10.4 Inspection parameters Specifically for NTF 33 4.11 Stitching . 34 4.12 Acceptance criteria for assembled parts: symmetry of multiple aligned parts e.g. gaps, steps, misalignment etc. . 37 5 Unacceptable characteristics . 39 6 Evaluation tables and def

16、ect size assessment . 62 6.1 Evaluation tables for defects on parts 62 6.2 Evaluation tables and defect size assessment for NFT only 63 7 Inspection template to ascertain defect sizes 64 (informative) Standard evolution form . 66 Annex AprEN 4726:2017 (E) 3 Foreword This standard was reviewed by the

17、 Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4726:2017 (E) 4 1 Scope This European standard defines t

18、he inspection rules and the cosmetic acceptance criteria for surfaces of aircraft cabin equipment. Surfaces will be considered under the aspects of technical feasibility of the industrial design. This standard outlines the framework between airlines, supplier and OEMs with regard to cosmetic issues.

19、 This document aims to: a) Provide the supplier or manufacturer with quality criteria, which need to be met during the production, testing- and quality-inspection-process. b) Guide airline-, OEM- and supplier-quality assurance with a description of cosmetic standards for following inspections: suppl

20、ier internal QA inspection; first article inspection; source inspection; incoming inspection; final assembly line, cabin inspection; customer presentation. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requireme

21、nts of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12464-1, Light and lighting Lighting of work places Part 1: Indoor work places EN ISO 2813, Paints and varnishes De

22、termination of gloss value at 20, 60 and 85 3 Terms, definitions and abbreviations 3.1 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:

23、/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp prEN 4726:2017 (E) 5 3.2 Abbreviations For the purposes of this document, the following abbreviations apply. 3D three Dimensional BFE Buyer Furnished Equipment (from OEM perspective) CAS Cabin Attendant Seat CDR

24、Critical Design Review CIE international commission on illumination DPI Dots Per Inch DSM Decorative Sheet Material e.g. for example etc. and so on FAI First Article Inspection FAL Final Assembly Line (OEM) FFF Fit, Form and Function HTPT Hydro Transfer Printing Technology i.e. that is to say ICS In

25、dustrial design Colour Specification (OEM) incl. including LED Light Emitting Diode LHS Left Hand Side NTF Non-Textile Floor OEM Original Equipment Manufacturer PTS Purchaser Technical Specification PVF polyvinyl fluoride film RFC Request For Change RHS Right Hand Side QC Quality Control SCN Specifi

26、c Change Note SFE Seller Furnished Equipment (from OEM perspective) SSBFE Seller Supplied BFE SU Standard Unit UV UltraViolet prEN 4726:2017 (E) 6 4 Definitions of cosmetic defects, inspection zones and criteria 4.1 Simplified definition of a cosmetic defect Cosmetic defects are deviations from the

27、standard or customized specifications / definitions. They are distinct from a certain distance without additional illumination and/or mirror and according to the definitions thereof within this standard. Cosmetic defects do not affect fit-form-function as a rule, however in certain extreme cases thi

28、s might actually be the case e.g. if paint build up impedes fitting. The defects listed encompass any process relevant material. Seller furnished equipment (SFE) or similar status: The supplier is not allowed to approach the airline concerning cosmetic issues or definition changes. Buyer Furnished e

29、quipment (BFE) / Seller supplied BFE (SSBFE) or similar status: Pickups or points of contention raised by OEM which are disputed between both parties (OEM and supplier or manufacturer) will be submitted to the customer to make the definitive and binding decision for all parties. Any decision has to

30、be documented by the supplier or manufacturer and accompany each individual unit in a conspicuous legible way without causing damage to the part / parts in question. All parties will adhere to the customer decision until as such times another supersedes it. For SFE, SSBFE and BFE all samples have to

31、 be supplied by the supplier and/or the customer to the OEM in order to validate the inspection. 4.2 Zonal type definition for installed parts 4.2.1 Zone A All primary viewed surfaces by a potential passenger or crew either walking through the aircraft or in any normal seating position or passenger

32、/ crew used furniture, e.g. table top / backs. Any surface which is directly seen, through either expected operation or expected viewing movement, see Figure 1. a) Passegner and crew member seating, top view b) Passenger and crew member seating, side view c) Passenger and crew member walking NOTE Th

33、e viewing cone would move according to the head movements up / down and left / right. Figure 1 Passengers viewing cone when seating in any position or walking through the cabin prEN 4726:2017 (E) 7 4.2.2 Zone B Secondary perceived surfaces - surfaces requiring extreme movement of the viewing angle t

34、o be perceived, i.e. the viewer has to abnormally bend to be able to see it. Areas which may be perceived by passengers or crew through normal operation e.g. stowages inside and stowage doors inside. Standard stowage interiors are appraised from the stowage door threshold, not by climbing or poking

35、the head inside. Purposely designed “walk in” monuments shall be entered and appraised in the standard method from within i.e. interior walls are A zone etc. 4.2.3 Zone C Surfaces that require - first “opening up”, e.g. folding, moving or removal of primary or secondarily viewed areas, In order to v

36、iew the area in question e.g. inside a lavatory mirror cabinet. Can only be viewed using equipment. Areas expected to be perceived by support staff and not passengers. Areas not visible after installation and that have no defined aesthetical surface treatment are still within the parameters of zone

37、C; however still maintaining other requirements e.g. closed edges, fit, form and function etc. Sizes / dimensions of areas / surfaces eligible shall be demonstrated in the technical documentation and require the OEM acceptance. 4.3 Classification of surfaces to be inspected The surfaces to be inspec

38、ted are classified into three zones (A, B, C). Customers and suppliers shall document at Initial Technical Coordination Meeting or functionally similar meeting latest at critical design review (CDR) or functionally similar meeting areas that may be exceptions after installation in the cabin of the a

39、ircraft, all other surfaces according to the below zonal prerequisites unless otherwise agreed. For BFE additionally (or similar status): The customer is required to clearly document and inform the OEM and supplier of his expectations regarding classification of surfaces. Figure 2 shows typical area

40、s for the zones, which are applied cross programm i.e. irrelevant of passenger aircraft model. Cockpit areas (incl freighters) are considered outside of this standard and need to be defined on demand between OEM, supplier and customer. The exception to this, is furniture, e.g. lavatories or crew res

41、t that share common walls with the cabin. Freighters, currier or crew perceived or frequented areas i.e. cabin linings / furniture are “A” zones, cargo areas are considered outside this classification and need to be defined on demand between OEM, supplier and customer. prEN 4726:2017 (E) 8 Key 1 Out

42、board side of a window shade is C zone. Inboard A zone 2 Side wall stowage lid shown open to view lid inside 3 Window funnel interior is A zone NOTE 1 Endcaps on over head stowage compartment is not shown. NOTE 2 LHS lining is a mirror of the RHS. NOTE 3 Linings- outboard surfaces are generally C zo

43、ne. NOTE 4 Linings- inboard surfaces are generally A zone. A zone B zone C zone Figure 2 Cabin lining The Figure 3 to Figure 14 show typical areas for the zones which are applied cross program, i.e. irrelevant of passenger aircraft model or monument type. Interior parts of monuments which the cabin

44、crew or passenger potentially frequent, perceive or view, e.g. lavatories, crew rest, special monuments, etc. are equally governed by the same zone classifications as for the outside of SFE (or similar status) monuments. Areas covered by other components or monuments will be considered as “C” zones

45、unless, see 4.4. prEN 4726:2017 (E) 9 a) Typical monument with magazine rack and doghouse b) Typical monument without additional furnishings Key A zone C zone Figure 3 Cabin monument a) Galley overview prEN 4726:2017 (E) 10 b) Fixed parts e.g. ovens, coffee makers, boilers; no side visible: C zone c

46、) Fixed parts e.g. ovens, coffee makers, boilers; sides visible: Surrounding gap makes sides visible then first 10 cm (4 inch) of sides are A zone thereafter C zone d) SFE trolley: outside A zone, door inside, interior: B zone, interior shelves etc.: B zone, underneath: C zone, tyres factory new e)

47、Removable parts e.g. SU: First 10 cm (4 inch) of sides are A zone, thereafter C zone Key 1 Walls for: fixed parts e.g. ovens, boilers: C zone unless gap makes sides visible then first 10 cm (4 inch): A zone 2 Walls for removable parts e.g. SU first 10 cm (4 inch) is A zone thereafter C zone 3 Stowag

48、e inside: B zone incl. door inside trolley doors inside 4 Underneath is C zone 5 Underneath is B zone, because it cannot be directly viewed; if higher this will become an A zone NOTE Supplied used BFE units e.g. trolleys or standard units etc. shall not be part of an inspection concerning aesthetica

49、l deviations, only new and SFE are eligible. Zonal areas are dedicated to the parts in questions according to the expected operational status, i.e. with full compliment of inserts, trollies, standard units etc. A zone B zone C zone Figure 4 Galley Figure 5 shows a typical economy seat. Zones might change with position. Figure 5 shows an example in order to demonstrate the applied theory. prEN 4726:2017 (E) 11 Key 1 Rear sides: if free standing or has any kind of seating behind: A zone. If last row and screened off by a wall: B zone 2