ASTM_F_2425_-_05a_2009.pdf

Designation:F242505a(Reapproved 2009)Standard Specification forContinued Airworthiness System for Weight-Shift-ControlAircraft1This standard is issued under the fixed designation F2425;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 The following continued airworthiness requirementsapply for the manufacture of weight-shift-control aircraft andtheir qualification for possible certification.1.2 This specification applies to aircraft seeking civil avia-tion authority approval,in the form of flight certificates,flightpermits,or other like documentation.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Terminology2.1 Acronyms:2.1.1 AOIAircraft Operating Instructions2.1.2 CAACivil Aviation Authority3.Registered Operators List Documentation3.1 The manufacturer shall maintain a list of registeredaircraft owners that includes all aircraft in service by serialnumber,registration number,together with the name andaddress of the owner.3.2 In cases where the appropriate CAA maintains recordsof registered owners sufficient for tracking aircraft and themanufacturer has access to such records,the manufacturer mayelect to utilize such records for complying with this section.4.Monitoring,Investigation,and Remedial Action4.1 The manufacturer shall maintain contact with ownerswho report incidents or other situations that relate to safety,operations,or maintenance of aircraft produced and placed inservice.The manufacturer shall promptly investigate all re-ported failures,malfunctions,or defects and develop theappropriate corrective action.The magnitude of the serviceproblem shall define the subsequent publication to the regis-tered owners.5.Safety Directives5.1 A safety directive shall be distributed to all registeredowners and appropriate CAAwhen a condition is found to existthat may also exist in other aircraft in the fleet and which wouldcause a deviation from original design or unsafe condition forflight,rendering the aircraft unairworthy.This change,main-tenance procedure,inspection procedure,or other proceduresdeemed appropriate by the manufacturer is mandatory andmust be performed and documented in the individual aircraftlogs in order for that aircraft to maintain compliance withASTM standards.5.2 A safety directive shall not be issued to address situa-tions that do not present a safety of flight issue.Thesesituations include,but are not limited to,circumstances inwhich service publications are issued to improve or enhancethe following:5.2.1 Spare part sales;5.2.2 Aircraft performance,capability,or efficiency,unlessthe change is needed for the aircraft to meet the minimumdesign and performance standards identified in the consensusstandard and the manufacturers statement of compliance;5.2.3 Aircraft appearance;5.2.4 Aircraft maintainability;or5.2.5 Any other aircraft characteristic when the action calledfor does not remedy an unsafe condition,including thoserelated to reliability which do not have an impact on safety offlight.6.Service Bulletin Documents6.1 Service bulletins should be distributed to all registeredowners by the manufacturer when no unsafe condition existsthat could lead to an unairworthy condition,but a serviceproblem has become repetitive for which the manufacturer hasdeveloped a design change,or service procedure change thatwill contribute to the improvement or convenience of operationor maintenance of the aircraft.Service bulletin changes are notmandatory to maintain the aircrafts compliance with ASTMstandards.1This specification is under the jurisdiction of ASTM Committee F37 on LightSport Aircraft and is the direct responsibility of Subcommittee F37.40 on WeightShift.Current edition approved July 1,2009.Published September 2009.Originallyapproved in 2005.Last previous edition approved in 2007 as F2425 05a(2007).DOI:10.1520/F2425-05AR09.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Service Letter Documents7.1 The manufacturer should issue service letters on anysubject that is considered helpful to the owners.Such letters areintended to maintain a good rapport with the owners,encour-age feedback on service and other problems,or to circulateitems of interest that an owner may feel would be of value toother owners.A service letter does not include any mandatoryowner actions.8.Continuation of Airworthiness8.1 Copies MaintainedIn order to help insure that the fleetof aircraft remains airworthy even after the original manufac-turer has ceased to exist as a viable