ASTM F2425-05a(2009)
(Specification)Standard Specification for Continued Airworthiness System for Weight-Shift-Control Aircraft
Standard Specification for Continued Airworthiness System for Weight-Shift-Control Aircraft
ABSTRACT
This specification covers continued airworthiness requirements for the manufacture of weight-shift-control aircraft and their qualification for possible certification. A safety directive shall be distributed to all registered owners and appropriate CAAwhen a condition is found to exist that may also exist in other aircraft in the fleet and which would cause a deviation from original design or unsafe condition for flight, rendering the aircraft unairworthy. Service bulletins should be distributed to all registered owners by the manufacturer when no unsafe condition exists that could lead to an unairworthy condition, but a service problem has become repetitive for which the manufacturer has developed a design change, or service procedure change that will contribute to the improvement or convenience of operation or maintenance of the aircraft. The manufacturer should issue service letters on any subject that is considered helpful to the owners.
SCOPE
1.1 The following continued airworthiness requirements apply for the manufacture of weight-shift-control aircraft and their qualification for possible certification.
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 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 requirements prior to use.
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Designation:F2425 −05a (Reapproved 2009)
Standard Specification for
Continued Airworthiness System for Weight-Shift-Control
Aircraft
This standard is issued under the fixed designation F2425; 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 appropriate corrective action. The magnitude of the service
problem shall define the subsequent publication to the regis-
1.1 The following continued airworthiness requirements
tered owners.
apply for the manufacture of weight-shift-control aircraft and
their qualification for possible certification.
5. Safety Directives
1.2 This specification applies to aircraft seeking civil avia-
5.1 A safety directive shall be distributed to all registered
tion authority approval, in the form of flight certificates, flight
owners and appropriate CAAwhen a condition is found to exist
permits, or other like documentation.
that may also exist in other aircraft in the fleet and which would
1.3 This standard does not purport to address all of the
cause a deviation from original design or unsafe condition for
safety concerns, if any, associated with its use. It is the
flight, rendering the aircraft unairworthy. This change, main-
responsibility of the user of this standard to establish appro-
tenance procedure, inspection procedure, or other procedures
priate safety and health practices and determine the applica-
deemed appropriate by the manufacturer is mandatory and
bility of regulatory requirements prior to use.
must be performed and documented in the individual aircraft
logs in order for that aircraft to maintain compliance with
2. Terminology
ASTM standards.
2.1 Acronyms:
5.2 A safety directive shall not be issued to address situa-
2.1.1 AOI—Aircraft Operating Instructions
tions that do not present a safety of flight issue. These
2.1.2 CAA—Civil Aviation Authority
situations include, but are not limited to, circumstances in
which service publications are issued to improve or enhance
3. Registered Operators List Documentation
the following:
3.1 The manufacturer shall maintain a list of registered 5.2.1 Spare part sales;
aircraft owners that includes all aircraft in service by serial 5.2.2 Aircraft performance, capability, or efficiency, unless
number, registration number, together with the name and the change is needed for the aircraft to meet the minimum
address of the owner. design and performance standards identified in the consensus
standard and the manufacturer’s statement of compliance;
3.2 In cases where the appropriate CAA maintains records
5.2.3 Aircraft appearance;
of registered owners sufficient for tracking aircraft and the
5.2.4 Aircraft maintainability; or
manufacturer has access to such records, the manufacturer may
5.2.5 Anyotheraircraftcharacteristicwhentheactioncalled
elect to utilize such records for complying with this section.
for does not remedy an unsafe condition, including those
related to reliability which do not have an impact on safety of
4. Monitoring, Investigation, and Remedial Action
flight.
4.1 The manufacturer shall maintain contact with owners
who report incidents or other situations that relate to safety,
6. Service Bulletin Documents
operations, or maintenance of aircraft produced and placed in
6.1 Service bulletins should be distributed to all registered
service. The manufacturer shall promptly investigate all re-
owners by the manufacturer when no unsafe condition exists
ported failures, malfunctions, or defects and develop the
that could lead to an unairworthy condition, but a service
problem has become repetitive for which the manufacturer has
developed a design change, or service procedure change that
This specification is under the jurisdiction of ASTM Committee F37 on Light
Sport Aircraft and is the direct responsibility of Subcommittee F37.40 on Weight
will contribute to the improvement or convenience of operation
Shift.
or maintenance of the aircraft. Service bulletin changes are not
Current edition approved July 1, 2009. Published September 2009. Originally
mandatory to maintain the aircraft’s compliance with ASTM
approved in 2005. Last previous edition approved in 2007 as F2425 – 05a (2007).
DOI: 10.1520/F2425-05AR09. standards.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2425−05a (2009)
7. S
...
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:F2425–05a (Reapproved 2007) Designation: F 2425 – 05a (Reapproved
2009)
Standard Specification for
Continued Airworthiness System for Weight-Shift-Control
Aircraft
This standard is issued under the fixed designation F 2425; 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 The following continued airworthiness requirements apply for the manufacture of weight-shift-control aircraft and their
qualification for possible certification.
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 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
requirements prior to use.
2. Terminology
2.1 Acronyms:
2.1.1 AOI—Aircraft Operating Instructions
2.1.2 CAA—Civil Aviation Authority
3. Registered Operators List Documentation
3.1 The manufacturer shall maintain a list of registered aircraft owners that includes all aircraft in service by serial number,
registration number, together with the name and address of the owner.
3.2 In cases where the appropriate CAA maintains records of registered owners sufficient for tracking aircraft and the
manufacturer has access to such records, the manufacturer may elect to utilize such records for complying with this section.
4. Monitoring, Investigation, and Remedial Action
4.1 Themanufacturershallmaintaincontactwithownerswhoreportincidentsorothersituationsthatrelatetosafety,operations,
or maintenance of aircraft produced and placed in service. The manufacturer shall promptly investigate all reported failures,
malfunctions, or defects and develop the appropriate corrective action. The magnitude of the service problem shall define the
subsequent publication to the registered owners.
5. Safety Directives
5.1 A safety directive shall be distributed to all registered owners and appropriate CAA when a condition is found to exist that
may also exist in other aircraft in the fleet and which would cause a deviation from original design or unsafe condition for flight,
rendering the aircraft unairworthy. This change, maintenance procedure, inspection procedure, or other procedures deemed
appropriate by the manufacturer is mandatory and must be performed and documented in the individual aircraft logs in order for
that aircraft to maintain compliance with ASTM standards.
5.2 Asafetydirectiveshallnotbeissuedtoaddresssituationsthatdonotpresentasafetyofflightissue.Thesesituationsinclude,
but are not limited to, circumstances in which service publications are issued to improve or enhance the following:
5.2.1 Spare part sales;
5.2.2 Aircraft performance, capability, or efficiency, unless the change is needed for the aircraft to meet the minimum design
and performance standards identified in the consensus standard and the manufacturer’s statement of compliance;
5.2.3 Aircraft appearance;
5.2.4 Aircraft maintainability; or
5.2.5 Any other aircraft characteristic when the action called for does not remedy an unsafe condition, including those related
This specification is under the jurisdiction of ASTM Committee F37 on Light Sport Aircraft and is the direct responsibility of Subcommittee F37.40 on Weight Shift.
Current edition approved Dec. 1, 2007. Published January 2008. Originally approved in 2005. Last previous edition approved in 2005 as F2425–05a.
Current edition approved July 1, 2009. Published September 2009. Originally approved in 2005. Last previous edition approved in 2007 as F 2425 – 05a (2007).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 2425 – 05a (2009)
to reliability which do not have an impact on safety of flight.
6. Service Bulletin Documents
6.1 Service bulletins should be distributed to all registered owners by the manufacturer when no unsafe condition exists that
could lead to an unairworthy condition, but a service problem has become repetitive for which the manufacturer
...
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:F2425–05 Designation: F 2425 – 05a (Reapproved 2009)
Standard Specification for
Continued Airworthiness System for Weight-Shift-Control
Aircraft
This standard is issued under the fixed designation F 2425; 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 The following continued airworthiness requirements apply for the manufacture of weight-shift-control aircraft and their
qualification for possible certification.
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 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
requirements prior to use.
2. Terminology
2.1 Acronyms:
2.1.1 AOI—Aircraft Operating Instructions
2.1.2 CAA—Civil Aviation Authority
3. Registered Operators List Documentation
3.1 The manufacturer shall maintain a list of registered aircraft owners that includes all aircraft in service by serial number,
registration number, together with the name and address of the owner.
3.2 In cases where the appropriate CAA maintains records of registered owners sufficient for tracking aircraft and the
manufacturer has access to such records, the manufacturer may elect to utilize such records for complying with this section.
4. Monitoring, Investigation, and Remedial Action
4.1 Themanufacturershallmaintaincontactwithownerswhoreportincidentsorothersituationsthatrelatetosafety,operations,
or maintenance of aircraft produced and placed in service. The manufacturer shall promptly investigate all reported failures,
malfunctions, or defects and develop the appropriate corrective action. The magnitude of the service problem shall define the
subsequent publication to the registered owners.
5. Safety Directives
5.1 A safety directive shall be distributed to all registered owners and appropriate CAA when a condition is found to exist that
may also exist in other aircraft in the fleet and which would cause a deviation from original design or unsafe condition for flight,
rendering the aircraft unairworthy. This change, maintenance procedure, inspection procedure, or other procedures deemed
appropriate by the manufacturer is mandatory and must be performed and documented in the individual aircraft logs in order for
that aircraft to maintain compliance with ASTM standards.
5.2 Asafetydirectiveshallnotbeissuedtoaddresssituationsthatdonotpresentasafetyofflightissue.Thesesituationsinclude,
but are not limited to, circumstances in which service publications are issued to improve or enhance the following:
5.2.1 Spare part sales;
5.2.2 Aircraft performance, capability, or efficiency, unless the change is needed for the aircraft to meet the minimum design
and performance standards identified in the consensus standard and the manufacturer’s statement of compliance;
5.2.3 Aircraft appearance;
5.2.4 Aircraft maintainability; or
5.2.5 Any other aircraft characteristic when the action called for does not remedy an unsafe condition, including those related
to reliability which do not have an impact on safety of flight.
This specification is under the jurisdiction of ASTM Committee F37 on Light Sport Aircraft and is the direct responsibility of Subcommittee F37.40 on Weight Shift.
Current edition approved Feb. 1, 2005. Published February 2005.
Current edition approved July 1, 2009. Published September 2009. Originally approved in 2005. Last previous edition approved in 2007 as F 2425 – 05a (2007).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 2425 – 05a (2009)
6. Service Bulletin Documents
6.1 Service bulletins should be distributed to all registered owners by the manufacturer when no unsafe condition exists that
could lead to an un-airworthy condition, but a service problem has become repetitive for which the manufacturer has developed
a design change, or service procedu
...
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