AMC 25.605(b) New
fabrication methods — Test programme
ED
Decision 2021/015/R
The test programme
should initially consider the material strength and other properties resulting
from each new fabrication method (‘new’ means new to the industry, an
applicant, or an application configuration). The scope of the test programme
should include considering the potential for anisotropic properties unless the
applicant has already established an understanding of these properties.
The test
programme that is required for the certification of new fabrication methods
should be used to evaluate the critical process variables. Based on that
evaluation, the applicant should establish in the fabrication specifications
the relevant parameters that govern the final material strength and other
properties of the part at the time of its production and throughout its
operational life. Furthermore, the applicant should evaluate the sensitivity
of the material strength and other properties to the critical process
variables to ensure that the established parameters are both robust and
practical.
Note: the
test programme may also be used to help applicants understand the defect types
and damage modes to be considered when showing compliance with other
specifications, e.g. CS 25.571. Understanding the potential defects and
damage modes is particularly important for sensitive fabrication processes,
e.g. those used for structural bonding.
[Amdt
No: 25/27]
New aircraft fabrication methods require rigorous testing to ensure material strength and properties. Test programs must evaluate critical process variables and establish robust manufacturing parameters for consistent part quality throughout its lifespan. Understanding potential defects and damage modes is crucial for safety compliance.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
Loading collections...