This document has been declared ""Stabilized"" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist. This specification has been declared ""NONCURRENT"" as of May 2007. It is recommended, therefore, that this document not be specified for new designs. The SAE AC-9C Aircraft Icing Technology Subcommittee reviewed the AIR4015A document in 2005. The committee elected to change this AIR document to a noncurrent status, revised to document the history and limited currency of the document. This decision was made to ensure that