prEN 9227-2

SLOVENSKI STANDARD
01-junij-2024
Aeronavtika - Vodenje programa - 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: prEN 9227-2
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2024
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 draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 9227-2:2024 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 . 7
5.1 Purpose of reliability control . 7
5.2 Construction of reliability . 8
6 Construction of reliability tasks . 8
6.1 Purpose of the clause . 8
6.2 Calculation tasks . 8
6.2.1 Reliability goals and allocation . 8
6.2.2 Reliability prediction . 9
6.3 Analysis tasks . 9
6.3.1 Risk analysis . 9
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 . 11
6.3.6 Design guides. 13
6.3.7 Other analyses. 13
6.4 Testing tasks . 15
6.4.1 General. 15
6.4.2 Reliability/durability characterization tests in the development phase . 15
6.4.3 Use of integrated reliability growth tests (non-specific tests) . 15
6.4.4 Reliability dedicated growth tests . 16
6.4.5 Reliability demonstration tests . 16
6.4.6 Measurement of reliability in series production . 16
7 Management tasks . 17
7.1 Reliability programme plan . 17
7.2 Activity management . 18
7.3 Programme reviews . 18
7.4 Risk management . 18
7.5 Failure reporting analysis and corrective action system (FRACAS). 18
7.6 Reliability assurance . 19
8 Guidance for reliability control . 19
8.1 General. 19
8.2 Preparation phase . 20
8.2.1 Objectives . 20
8.2.2 Management tasks . 20
8.2.3 Calculation tasks . 20
8.2.4 Analysis tasks . 21
8.3 Realization phase . 22
8.3.1 Objectives . 22
8.3.2 Management tasks . 22
8.3.3 Calculation tasks . 23
8.3.4 Analysis tasks . 23
8.3.5 Testing tasks . 23
8.4 Use phase . 24
8.4.1 Objectives . 24
8.4.2 Management tasks . 24
8.4.3 Calculation tasks . 24
8.4.4 Analysis tasks . 25
8.4.5 Expected results . 25
Annex A (informative) Task summary table . 26
Bibliography . 28

European foreword
This document (prEN 9227-2:2024) has been prepared by ASD-STAN.
This document is currently submitted to the CEN Enquiry.
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.
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:
— to determine the tasks to be performed and the application procedures, according to the specific
nature of the programme and its goals;
— to define and implement the provisions necessary for performing these tasks;
— within programme execution, to 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.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
product
result of activities or processes
Note 1 to entry: product categories can be services, hardware, software, processed materials, intermediate work
products from elementary activities, such as documents or models.
Note 2 to entry: in the frame of a product developed to satisfy a customer’s need, the processes involved are the
expression of the need, the establishment of the definition, the industrialization and the production.
Note 3 to entry: the product can be either a final product to be del
...