BLUF

Significant challenges in initial reliability were overcome through the Coles review, enhancing sustainment and availability.

Summary

  1. Dysfunctional relationships among stakeholders hindered effective submarine sustainment.
  2. The review identified systemic support issues, not submarine design flaws.
  3. Implementing Coles review recommendations significantly improved submarine availability.
  4. Review's success offers lessons for future defence project management, especially for nuclear submarines.

References