This might be a sign of how bad things have been with the MRH-90 (NH-90) program. As part of the agreed remediation plan for the program, the ADF will receive an extra airframe for no additional cost.
http://www.minister.defence.gov.au/2013/05/09/minister-for-defence-and-minister-for-defence-materiel-mrh90-helicopter-project-of-concern-progress/
http://www.minister.defence.gov.au/2013/05/09/minister-for-defence-and-minister-for-defence-materiel-mrh90-helicopter-project-of-concern-progress/