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Workload Is Increasing and Becoming More Complex

• The shipyards are maintaining three more nuclear-powered aircraft carriers than in FY 2000. This alone results in an average annual increase of a little more than 150,000 total man-days per ship, or 450,000 annual man-days.
• Increases in the duration of the operational cycle have caused more work in fewer maintenance periods, or availabilities. This leads to larger, less-frequent availabilities, which are more difficult for the shipyards to manage, often leading to inefficiency in execution.

A Less-Experienced Workforce Is Less Productive

• Workforce experience has decreased. For example, the percentage of the total civilian workforce with less than ten years of experience has increased from 35 percent in FY 2006 to nearly 50 percent in FY 2014, while the percentage with 20–29 years of experience decreased from 31 percent to 12 percent.
• As the total shipyard workforce increases and experienced workers are replaced with less-experienced ones, we observe a decline in overall workforce productivity.

Aging Ships, Longer Deployment Cycles, and the Budgeting Process Likely Lead to Increases in Workload

• Nuclear submarines in the current fleet will continue to age in the near and middle terms, which could have significant consequences both for the Navy operationally and for maintenance execution in the naval shipyards.
• Based on discussions with staff from the Carrier Planning Activity and naval shipyards, the additional maintenance generated by the higher operational trends is recoverable but may require longer aircraft carrier dry-docking periods, additional maintenance man-days, and some unplanned component replacements.
• The budgeting process requires the Navy to estimate maintenance requirements two years prior to execution, when much of the maintenance activity is still unknown. Furthermore, the efforts to estimate risk and plan for the unexpected may be thwarted by overly optimistic performance factors. All of this points to a risk of additional, unplanned work for the public shipyards in the execution year.