ASTM F3254-22

Standard Specification for Aircraft Interaction of Systems and Structures

SCOPE
1.1 This specification covers the airworthiness requirements that address the interaction of systems and structures. The material was developed through open consensus of international experts in general aviation. This information was created by focusing on Normal Category aeroplanes. The content may be more broadly applicable; it is the responsibility of the applicant to substantiate broader applicability as a specific means of compliance.  
1.2 An applicant intending to propose this information as Means of Compliance for a design approval must seek guidance from their respective oversight authority (for example, published guidance from applicable Civil Aviation Authority (CAAs)) concerning the acceptable use and application thereof. For information on which oversight authorities have accepted this specification (in whole or in part) as an acceptable Means of Compliance to their regulatory requirements (hereinafter “the Rules”), refer to the ASTM Committee F44 web page (www.ASTM.org/COMMITTEE/F44.htm). Annex A1 maps the Means of Compliance of the ASTM Standards to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part 23, amendment 64, or later.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2022
• ICS: 03.120.10 - Quality management and quality assurance
• ICS: 49.020 - Aircraft and space vehicles in general
• Technical Committee: F44 - General Aviation Aircraft
• Drafting Committee: F44.30 - Structures

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F3254 −22
Standard Specification for
1
Aircraft Interaction of Systems and Structures
This standard is issued under the fixed designation F3254; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers the airworthiness requirements
F3060 Terminology for Aircraft
that address the interaction of systems and structures. The
F3093/F3093M Specification for Aeroelasticity Require-
material was developed through open consensus of interna-
tional experts in general aviation.This information was created ments
F3115/F3115M Specification for Structural Durability for
by focusing on Normal Category aeroplanes. The content may
be more broadly applicable; it is the responsibility of the Small Aeroplanes
F3116/F3116M Specification for Design Loads and Condi-
applicant to substantiate broader applicability as a specific
means of compliance. tions
F3230 Practice for Safety Assessment of Systems and
1.2 An applicant intending to propose this information as
Equipment in Small Aircraft
Means of Compliance for a design approval must seek guid-
3
2.2 EASA Standard:
ance from their respective oversight authority (for example,
CS-23 Normal, Utility,Aerobatic and CommuterAeroplanes
published guidance from applicable Civil Aviation Authority
4
2.3 FAA Standard:
(CAAs)) concerning the acceptable use and application
14 CFR Part 23 Airworthiness Standards: Normal Category
thereof. For information on which oversight authorities have
Airplanes
accepted this specification (in whole or in part) as an accept-
able Means of Compliance to their regulatory requirements
3. Terminology
(hereinafter “the Rules”), refer to the ASTM Committee F44
3.1 A listing of terms, abbreviations, acronyms, and sym-
web page (www.ASTM.org/COMMITTEE/F44.htm). Annex
bols related to aircraft covered byASTM Committees F37 and
A1 maps the Means of Compliance of theASTM Standards to
F44 airworthiness design standards can be found in F3060
EASACS-23,amendment5,orlater,andFAA14CFRPart23,
Terminology forAircraft. Items listed here are more specific to
amendment 64, or later.
this specification.
1.3 This standard does not purport to address all of the
3.2 Definitions of Terms Specific to This Standard:
safety concerns, if any, associated with its use. It is the
3.2.1 extremely improbable—the allowable quantitative
responsibility of the user of this standard to establish appro-
probability based on the assessment level and catastrophic
priate safety, health, and environmental practices and deter-
failure condition classification.
mine the applicability of regulatory limitations prior to use.
3.2.1.1 Discussion—The term extremely improbable is de-
1.4 This international standard was developed in accor-
fined in Practice F3230. As used in this specification, it
dance with internationally recognized principles on standard-
represents the allowable quantitative probability to be used in
ization established in the Decision on Principles for the
this specification based on the assessment level and cata-
Development of International Standards, Guides and Recom-
strophic failure condition classification found in Practice
mendations issued by the World Trade Organization Technical
F3230.
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
ThisspecificationisunderthejurisdictionofASTMCommitteeF44onGeneral Standards volume information, refer to the standard’s Document Summary page on
Aviation Aircraft and is the direct responsibility of Subcommittee F44.30 on the ASTM website.
3
Structures. Available from European Union Aviation Safety Agency (EASA), Konrad-
Current edition approved April 1, 2022. Published April 2022. Originally Adenauer-Ufer 3, D-50668 Cologne, Germany, https://www.easa.europa.eu.
4
approved in 2019. Last previous edition approved in 2019 as F3254–19. DOI: Available from Federal Aviation Administration (FAA), 800 Independence
10.1520/F3254-22. Ave., SW, Washington, DC 20591, http://www.faa.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F3254−22
3.2.2 failure condition—structural system failure condition
V'' = clearance speed as defined by Specification F3093/
that affec
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F3254 − 19 F3254 − 22
Standard Specification for
1
Aircraft Interaction of Systems and Structures
This standard is issued under the fixed designation F3254; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the airworthiness requirements that address the interaction of systems and structures. The material
was developed through open consensus of international experts in general aviation. This information was created by focusing on
Normal Category aeroplanes. The content may be more broadly applicable; it is the responsibility of the applicant to substantiate
broader applicability as a specific means of compliance.
1.2 An applicant intending to propose this information as Means of Compliance for a design approval must seek guidance from
their respective oversight authority (for example, published guidance from applicable Civil Aviation Authority (CAAs)) concerning
the acceptable use and application thereof. For information on which oversight authorities have accepted this specification (in
whole or in part) as an acceptable Means of Compliance to their regulatory requirements (hereinafter “the Rules”), refer to the
ASTM Committee F44 web page (www.ASTM.org/COMMITTEE/F44.htm). Annex A1 maps the Means of Compliance of the
ASTM Standards to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part 23, amendment 64, or later.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
F3060 Terminology for Aircraft
F3093/F3093M Specification for Aeroelasticity Requirements
F3115/F3115M Specification for Structural Durability for Small Aeroplanes
F3116/F3116M Specification for Design Loads and Conditions
F3230 Practice for Safety Assessment of Systems and Equipment in Small Aircraft
3
2.2 EASA Standard:
CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes
4
2.3 FAA Standard:
14 CFR Part 23 Airworthiness Standards: Normal Category Airplanes
1
This specification is under the jurisdiction of ASTM Committee F44 on General Aviation Aircraft and is the direct responsibility of Subcommittee F44.30 on Structures.
Current edition approved May 1, 2019April 1, 2022. Published June 2019April 2022. Originally approved in 2019. Last previous edition approved in 2019 as F3254–19.
DOI: 10.1520/F3254–19.10.1520/F3254-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from European Union Aviation Safety Agency (EASA), Konrad-Adenauer-Ufer 3, D-50668 Cologne, Germany, https://www.easa.europa.eu.
4
Available from Federal Aviation Administration (FAA), 800 Independence Ave., SW, Washington, DC 20591, http://www.faa.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F3254 − 22
3. Terminology
3.1 A listing of terms, abbreviations, acronyms, and symbols related to aircraft covered by ASTM Committees F37 and F44
airworthiness design standards can be found in F3060 Terminology for Aircraft. Items listed here are more specific to this
specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 extremely improbable—the allowable quantitative probability based on the assessment level and catastrophic failure
condition classification.
3.2.1.1 Discussion—
The term extremely improbable is defined in Practice F3230. As used in this specification, it represents the allowable quantitative
probability to be used in this specification based on the assessment level and catastrophic failur
...