(1) Except as provided in subregulation (2), an aircraft registered in Saint Lucia, being an aircraft in respect of which a certificate of airworthiness issued or rendered valid pursuant to these Regulations is in force, shall not fly unless there is in force a release to service issued in accordance with this regulation if the aircraft or any part of the aircraft or such of its equipment as is necessary for the airworthiness of the aircraft has been overhauled, repaired, replaced, modified, maintained, or has been inspected as required by these Regulations, as the case may be.