As a Fire Controlman, you may use several MDS forms each day. The Ships' Maintenance and Material Management (3-M) Manual, OPNAVINST 4790.4, commonly referred to as the "3-M Manual," provides in-depth information on how to complete these forms. For information on completing the supply forms associated with the MDS, refer to the appropriate supply manuals.

Ship's Maintenance Action Form

The Ship's Maintenance Action Form (OPNAV 4790/2K), shown in figure 2-1, is the primary MDS form. A multiple-copy form having six sections, the 4790/2K is used to report both deferred and completed maintenance actions (including previously deferred actions), and is commonly referred to as a "two-kilo". Whenever you make an entry on this form, print the information in CAPITAL letters. Be sure your entries are legible and located within the tick marks. If you make an error, line it out with a single line and enter the correct information. Refer to your 3-M manual for specific guidance.

Figure 2-l.-Ship's Maintenance Action Form (OPNAV 4790/2K).

Supplemental Form

The Supplemental Form (OPNAV 4790/2L), shown in figure 2-2, is used to provide amplifying information from drawings, listings, associated parts placement, part labels, etc., for use by a repair activity. When you need to use an OPNAV 4790/2L with an OPNAV 4790/2K, enter the notation " 2L USED" in block 35 of the OPNAV 4790/2K.

Figure 2-2.-Supplemental form (OPNAV 4790/2L).

Maintenance Planning & Estimating Form

The Maintenance Planning & Estimating Form (OPNAV 4790/2P) is used with an OPNAV 4790/2K that defers maintenance to be done by an intermediate maintenance activity (IMA) under the Intermediate

Maintenance Management System (IMMS). When the form is completed, it provides information required for detailed screening and planning. Figure 2-3 shows this form as it may appear when a repair activity has completed planning and scheduling for the maintenance requirement.

Figure 2-3.-Maintenance Planning & Estimating Form (OPNAV 4790/2P).

Ship's Configuration Change Form

The Ship's Configuration Change Form (OPNAV 4790/CK), shown in figure 2-4, is used to report configuration changes at the individual equipment level. (The associated maintenance action on an

OPNAV 4790/CK does not need to be documented on an OPNAV 4790/2K.) This form is used to report the completion of (1) a previously deferred maintenance action that results in a configuration change, and (2) a maintenance action (with no prior deferral) that results in a configuration change.

Figure 2-4.-Ship's Configuration Change Form (OPNAV 4790/CK).

Ship's Configuration Change Form Continuation Page

The Ship's Configuration Change Form

Continuation Page (OPNAV 4790/CK(C)), shown in figure 2-5, is simply a continuation page for the OPNAV 4790/CK. The COSAL Use and Maintenance Manual, SPCCINST 4441.170, in addition to

OPNAVINST 4790.4, provides block-by-block instructions for completing these forms.