Definition
An Inspection Authorization (IA) is an additional certification the FAA grants to a qualified Airframe and Powerplant (A&P) mechanic, allowing them to perform and approve annual inspections, as well as approve major repairs and major alterations to aircraft, airframes, engines, propellers, and appliances for return to service.
Plain English
It is an extra qualification a mechanic can earn that lets them sign off the yearly inspection of an aircraft and approve big repairs or modifications that a regular mechanic is not allowed to approve on their own.
Context Anchor
You may see this term in aircraft maintenance sections, logbook entries, and discussions about who is legally allowed to inspect or approve an aircraft for flight.
Derivation
The phrase combines 'inspection' (from Latin inspicere, 'to look into') with 'authorization' (the granting of official permission). Together it literally means 'official permission to inspect' — which matches its FAA use: permission to perform and approve specific inspections that a standard mechanic cannot.
Why Pilots Care
An annual inspection is required by regulation before an aircraft can be flown legally in most operations, and only a mechanic holding an IA (or a repair station with equivalent authority) can sign it off. Knowing this helps pilots understand who can legally return their aircraft to service after maintenance.
Intuition Check
Inspection Authorization does not mean general permission for anyone to inspect an airplane. In FAA use, it is a specific added authorization held by certain qualified mechanics.
Example Sentence 1
The owner flew the airplane to a mechanic with an Inspection Authorization to have the annual inspection completed.
Example Sentence 2
Only a mechanic holding an Inspection Authorization may approve major repairs on the light-sport aircraft.