Which regulation authorizes a certificated mechanic with an Inspection Authorization to approve or disapprove a major repair or alteration?

The regulation that authorizes a certificated mechanic with an Inspection Authorization (IA) to approve or disapprove a major repair or alteration is FAR 65.95. This regulation specifically outlines the privileges and limitations of mechanics holding an IA. It emphasizes that individuals who have received this authorization have the legal authority to conduct inspections and approve major repairs or alterations on aircraft, ensuring that such work meets the required safety standards and regulatory compliance.

FAR 61.57 pertains to the requirements for pilot recency and does not relate to mechanic authorizations. FAR 91.403 addresses the responsibility and authority of the owner or operator concerning the maintenance of an aircraft, without specific reference to mechanics or their authorization for major repairs. FAR 43.7 outlines the conditions under which major repairs and alterations must be performed, but it does not confer the approval authority that FAR 65.95 grants to those with an Inspection Authorization. Thus, the correct choice highlights the specific legal framework that empowers mechanics with an IA to make critical decisions regarding aircraft repairs and alterations.