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SIST EN 9227-2:2025

(Main)

Aerospace series - Programme management - Guide for reliability control

Aerospace series - Programme management - Guide for reliability control

The purpose of this document is to provide customers and their suppliers with a document specifying the notions of product reliability "construction" and "management".
It offers programme directors and project managers information likely to help them:
-   determine the tasks to be performed and the application procedures, according to the specific nature of the programme and its goals;
-   define and implement the provisions necessary for performing these tasks;
-   within programme execution, situate the various tasks involved in constructing and managing the reliability of a product.
This document applies to all programmes (in particular aeronautical, space and armament programmes).
These reliability construction procedures concern not only all the products and its constituents covered by these programmes, but also the means and manufacturing processes to be implemented for their realization.
The provisions of this document can be negotiated at all levels between the parties directly concerned by a given programme. This implies, on the part of the customer, that each lower level is provided with the information necessary to perform tasks and meet the specified targets.

Luft- und Raumfahrt - Programm-Management - Richtlinien für das management der Zuvenlässigkeit

Série aérospatiale - Management de programme - Guide pour la maîtrise de la fiabilité

Aeronavtika - Vodenje programov - Vodilo za nadzor zanesljivosti

General Information

Status
Published
Public Enquiry End Date
02-Jul-2024
Publication Date
29-May-2025
ICS
03.100.40 - Research and development
49.020 - Aircraft and space vehicles in general
49.140 - Space systems and operations
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
29-May-2025
Due Date
03-Aug-2025
Completion Date
30-May-2025
Ref Project
EN 9227-2:2025 - Aerospace series - Programme management - Guide for reliability control

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SLOVENSKI STANDARD
01-julij-2025
Aeronavtika - Vodenje programov - Vodilo za nadzor zanesljivosti
Aerospace series - Programme management - Guide for reliability control
Luft- und Raumfahrt - Programm-Management - Richtlinien für das management der
Zuvenlässigkeit
Série aérospatiale - Management de programme - Guide pour la maîtrise de la fiabilité
Ta slovenski standard je istoveten z: EN 9227-2:2025
ICS:
03.100.40 Raziskave in razvoj Research and development
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 9227-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2025
EUROPÄISCHE NORM
ICS 49.140
English Version
Aerospace series - Programme management - Guide for
reliability control
Série aérospatiale - Management de programme - Luft- und Raumfahrt - Programm-Management -
Guide pour la maîtrise de la fiabilité Richtlinien für das management der Zuvenlässigkeit
This European Standard was approved by CEN on 7 April 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 9227-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 List of acronyms . 7
5 Principles of reliability control . 8
5.1 Purpose of reliability control . 8
5.2 Construction of reliability . 8
6 Construction of reliability tasks . 8
6.1 Purpose of the clause . 8
6.2 Calculation tasks . 9
6.2.1 Reliability goals and allocation . 9
6.2.2 Reliability prediction . 10
6.3 Analysis tasks . 10
6.3.1 Risk analysis . 10
6.3.2 Experience feedback . 10
6.3.3 Functional analysis . 10
6.3.4 Failure mode, effects and criticality analysis (FMECA) . 11
6.3.5 Reliability and availability modelling . 12
6.3.6 Design guides. 14
6.3.7 Other analyses. 15
6.4 Testing tasks . 16
6.4.1 General. 16
6.4.2 Reliability/durability characterization tests in the development phase . 16
6.4.3 Use of integrated reliability growth tests (non-specific tests) . 17
6.4.4 Reliability dedicated growth tests . 17
6.4.5 Reliability demonstration tests . 17
6.4.6 Measurement of reliability in series production . 18
7 Management tasks . 19
7.1 Reliability programme plan . 19
7.2 Activity management . 19
7.3 Programme reviews . 19
7.4 Risk management . 19
7.5 Failure reporting analysis and corrective action system (FRACAS). 20
7.6 Reliability assurance . 20
8 Guidance for reliability control . 21
8.1 General. 21
8.2 Preparation phase . 22
8.2.1 Objectives . 22
8.2.2 Management tasks . 22
8.2.3 Calculation tasks . 22
8.2.4 Analysis tasks . 23
8.3 Realization phase . 24
8.3.1 Objectives . 24
8.3.2 Management tasks . 24
8.3.3 Calculation tasks . 25
8.3.4 Analysis tasks . 25
8.3.5 Testing tasks . 26
8.4 Use phase . 26
8.4.1 Objectives . 26
8.4.2 Management tasks . 26
8.4.3 Calculation tasks . 26
8.4.4 Analysis tasks . 27
8.4.5 Expected results . 27
Annex A (informative) Task summary table . 28
Bibliography . 30

European foreword
This document (EN 9227-2:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by November 2025, and conflicting national standards shall be
withdrawn at the latest by November 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
1 Scope
The purpose of this document is to provide customers and their suppliers with a document specifying
the notions of product reliability “construction” and “management”.
It offers programme directors and project managers information likely to help them:
— determine the tasks to be performed and the application procedures, according to the specific
nature of the programme and its goals;
— define and implement the provisions necessary for performing these tasks;
— within programme execution, situate the various tasks involved in constructing and managing the
reliability of a product.
This document applies to all programmes (in particular aeronautical, space and armament
programmes).
These reliability construction procedures concern not only all the products and its constituents covered
by these programmes, but also the means and manufacturing processes to be implemented for
their realization.
The provisions of this document can be negotiated at all levels between the parties directly concerned
by a given programme. This implies, on the part of the customer, that each lower level is provided with
the information necessary to perform tasks and meet the specified targets.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.
...

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