Action
Notice of proposed rulemaking (NPRM).
Summary
This action would require holders of design approvals to make available to operators damage tolerance data for repairs and alterations to fatigue critical airplane structure. This proposal is needed to support operator compliance with the requirement to include damage tolerance inspections and procedures in their maintenance programs, and to enable operators to take into account the possible adverse effects of repairs and alterations on fatigue critical structure. The intended effect of this proposal is to ensure the continued airworthiness of fatigue critical airplane structure by requiring design approval holders to support operator compliance with specified damage tolerance requirements.