Ship's Maintenance Action Form
Job Control Number (JCN) Log
The JCN log (fig. 13-14) is a locally generated log
used by the workcenter to assign workcenter Job
OPNAV Form 4790/2K (fig. 13-15) is used to show
Sequence Numbers (JSNs) to maintenance actions
completion of specific PMS requirements; to request
repair of equipment or services from IMAs or shipyards;
required within the workcenter. These numbers enable
or can be used to describe equipment malfunctions.
each work item to individually tracked and its progress
to be monitored.
Once submitted, the information from the 4790/2K will
Figure 13-15.--Ship's Maintenance Action Form, OPNAV 4790/2K.