AMS 3970/1 gives information about the technical requirements and qualification procedure for carbon fiber fabric epoxy prepreg used for repair of carbon fiber reinforced epoxy structures. The prepreg system may include a film adhesive to be applied in a co-curing process with the prepreg for joint and sandwich bonding. The need for a film adhesive shall be established during screening tests.
AMS3970/1 is revised to include the relevant PRI documentation references and the PRI rules to manage the qualification material process through the Qualified Products Group (QPG). The revision also incorporates modifications to the qualification requirements test matrix. Test method specifications have been updated.