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United States Department of Transportation United States Department of Transportation

AC 120-93 - Damage Tolerance Inspections for Repairs and Alterations

Document Information

Number
120-93
Title
Damage Tolerance Inspections for Repairs and Alterations
Status
Active
Date issued
2007-11-20
Office of Primary Responsibility
ANM-100, Aircraft Certification Service, Transport Airplane Directorate
Description
This advisory circular (AC) provides guidance material for Type Certificate (TC) Holders, Supplemental Type Certificate (STC) Holders, and operators to comply with requirements in the Aging Airplane Safety Act to ensure the airworthiness of aging airplane parts and components. The Aging Airplane Safety Rule that supports the Act specifies incorporating damage tolerance-based inspections into an operator’s continuous airworthiness maintenance program. These inspections will help ensure the integrity of fatigue critical structure on transport category airplanes operated in air transportation. This guidance will provide persons who have developed repairs and alterations with a means to develop damage tolerance data to be used to determine damage tolerance inspections for repairs and alterations that affect fatigue critical structure. This AC will give guidance on developing compliance documents, schedules and plans that will assist in developing and incorporating damage tolerance inspections into maintenance programs of certain transport category airplanes with respect to repairs and alterations.
Content