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