History — 521.427

521.427 (1) The Minister shall issue an airworthiness directive in respect of an aeronautical product if (a) an unsafe condition exists in the aeronautical product and the condition is likely to exist or develop in other aeronautical products; (b) it is necessary to modify or cancel the requirements of an airworthiness directive issued by the foreign airworthiness authority having jurisdiction over the type design of the aeronautical product because the Minister considers the airworthiness directive inappropriate for reasons related to the environment, safety, the delayed receipt of an instruction issued by the foreign airworthiness authority or reliance on foreign legislation; or (c) it is necessary to modify or cancel a Canadian airworthiness directive that is in force, because a condition for issuance referred to in paragraph (a) or (b) has changed or ceased to exist. (2) The airworthiness directive shall (a) identify the unsafe condition; (b) identify the affected aeronautical products; (c) specify the corrective actions required; (d) specify the schedule for completion of the required corrective actions; and (e) specify its effective date. (3) This section does not apply if th…