ASTM WK30359

    New Specification for Light Sport Aircraft Manufacturers Continued Operational Safety (COS) Monitoring Program

    (What is a Work Item?)

    Developed by Subcommittee: F37.70 | Committee F37 | Contact Staff Manager


    1. Scope

    1.1 This specification establishes the minimum requirements for the continued operational safety monitoring of light sport aircraft or light sport aircraft kits or both. 1.2 This specification applies to aircraft seeking civil aviation authority approval in the form of flight certificates, flight permits, or other like documentation. 1.3 Units--The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

    Through discussions with civil aviation authorities, industry, auditing bodies, and within the F37 committee itself, it has been decided to undertake a continued airworthiness (CA) harmonization effort across LSA aircraft types. The end goal is to consolidate the five existing standards into a single standard that can be used and developed across the industry. This effort will first focus on identifying the key differences between the five standards. Then, the task group will discuss harmonization of these areas of difference. Finally, the task group will ballot a new CA standard that can be used across all aircraft types.


    continued operational safety; light-sport aircraft; safety directive; service bulletin; service letter

    The title and scope are in draft form and are under development within this ASTM Committee.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Adam Morrison


    F37 (17-02)

    Negative Votes Need Resolution


    F37 (16-04)

    Withdrawn From Balloting