CHAPTER 9 SHIP AVAILABILITIES, REPAIR ACTIVITIES, AND SHIP TRIALS

Figure 8-8.-QA Form 34, Torque/Controlled Assembly Report.

REPAIRS AND ALTERATIONS

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CHAPTER 9 SHIP AVAILABILITIES, REPAIR ACTIVITIES, AND SHIP TRIALS When you have read and understood this chapter, you should be able to answer the following learning objectives: l Describe the kinds of ship availabilities. intermediate maintenance activities (SIMAs), ship repair facilities (SRFs), naval shipyards, and private l Explain the difference between alterations and shipyards. repairs. . Identif y and explain the purpose of the kinds of . Identify and explain the functions of inter- ship trials. mediate maintenance activities (IMAs), shore A ship’s effectiveness depends on its ability to function well; therefore, we have to keep it in prime condition. That means that the ship’s crew routinely handles normal maintenance and repairs and that we have a dependable system for those the ship’s crew cannot handle. This chapter deals mostly with those jobs the ship’s crew cannot handle and which are done by the following repair activities, which we will explain in greater detail in this chapter: l An intermediate maintenance activity (IMA) is a repair ship (AR), destroyer tender (AD), or submarine tender (AS). . A shore intermediate maintenance activity (SIMA) is based on land and offers services similar to those of an IMA. l A ship repair facility (SRF) is similar to a naval shipyard but on a smaller scale and is usually based outside the continental United States. . A shipyard is any full service naval shipyard or a civilian shipyard contracted for Navy work. The engineering department officers and enlisted supervisors have an interest in nearly all of the work a repair activity does on their ship. You should be familiar with the procedures that will ensure the best job within the funds available. This chapter will help you understand what happens when a repair activity works on your ship. TYPES OF AVAILABILITIES An availability is the period of time a ship is assigned to undergo maintenance or repair by a repair activity. Only the authority granting the availability can change the allotted period of time. However, a repair activity may recommend a completion date to the granting authority or request an extension of time to complete work already underway. There are several types of ship availabilities that we will define in the next paragraphs. For example, restricted and technical availabilities differ in whether the ship is or is not ready to carry out its mission. l l A restricted availability (RA) is used to complete specific items of work in a shipyard or SRF; the ship is NOT available to perform its mission during that time. A technical availability (TA) is used to complete specific items of work in a shipyard or SRF; the ship IS available to perform its mission during that time. Other types of availabilities identify the type of work to be done and where it will be done. . A regular overhaul (ROH) availability is used to complete general repairs and alterations in a naval shipyard or other shore-based repair activity. The 9-1

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