BOC Aviation Issues US$500 Million of 3.0% Senior Unsecured Five-Year Notes 23 May 2017 BOC Aviation Limited has issued US$500 million in five-year fixed rate Regulation S senior unsecured notes due 2022 (the "Notes"). The issuance of the Notes closed on 23 May 2017. For more information, click here for the full announcement published on 23 May 2017.