High operational tempo/scheduling. All 16 ships’ crews we met with stated high operational tempo and scheduling challenged their ability to complete maintenance. Ships’ crews described operating in unsafe conditions, with safety measures circumvented or disregarded, and working 12 to 20 hours while in port, cancelling leave, and also working long shifts in order to get maintenance done while underway. For example, one surface ship’s crew told us they may only have 2 or 3 days to complete maintenance tasks in port, but if challenges prevent completion of maintenance it may be deferred in order to get the ship underway again. Further, they said high operational tempo and schedule is a challenge while underway because sailors may work 12 to 14 hours per day, in addition to performing other duties. Another ship’s crew stated that, at times, sailors might average 80 hours of work per week while in port, and that sometimes that number increases to over 100 hours of work per week to prepare for deployment.29