ALS/AWL is one of the most critical parts of an aircraft's ICA, because it contains maintenance tasks and limitations that preserve the safety assumptions made during aircraft certification. Airbus definition for #ALS: ALS Part 1, #SLI (Safe Life Items): parts that cannot use damage tolerance logic, so they get a hard life limit instead. ALS Part 2, #DT-ALI (Damage Tolerant ALI): fatigue-critical structure inspected on a schedule, this is where CDCCL-related structural items