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    ASTM F3361 - 18e1

    Standard Guide for Classifying Alterations for In-Service Aircraft under FAA Authority Oversight

    Active Standard ASTM F3361 | Developed by Subcommittee: F39.02

    Book of Standards Volume: 15.09


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    Significance and Use

    5.1 To standardize applications of CFR Title 14, as applicable.

    1. Scope

    1.1 This guide is intended for Part 23 and predecessor aircraft (see Civil Air Regulations (CAR) 3) and:

    1.1.1 Is applicable to aircraft to which Part 43 applies.

    1.1.2 Addresses both initial installation and replacement of aircraft articles.

    1.1.3 Is a guide for classifying an alteration.

    1.1.4 The intended audience of this guide is individuals who have been tasked with evaluating alterations for the purpose of categorizing an alteration for the purpose of satisfying the regulations.

    1.1.5 Is an alteration to an article.

    1.2 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.

    1.3 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    Code of Federal Regulations

    14 CFR Aeronautics and Space, Vol 1, Chapter I, Su Airworthiness Standards: Normal, Utility, Acrobatic, and Commuter Category Airplanes

    14 CFR Aeronautics and Space, Vol 1, Chapter I, Su Certification Procedures for Products and Articles, including Amendments 21-1 through 21-100

    14 CFR Aeronautics and Space, Vol 1, Chapter I, Su

    14 CFR Aeronautics and Space, Vol 2, Chapter I, Su Certification: Airmen Other Than Flight Crewmembers

    14 CFR Aeronautics and Space, Vol 3, Chapter I, Su


    ICS Code

    ICS Number Code 49.035 (Components for aerospace construction)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/F3361-18E01

    Citation Format

    ASTM F3361-18e1, Standard Guide for Classifying Alterations for In-Service Aircraft under FAA Authority Oversight, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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