2. When satisfied that the work has been properly completed, the workcenter supervisor crosses off, with an X, the maintenance requirement. If the maintenance is not completed, the maintenance requirement is circled and rescheduled. However, if material deficiencies or casualties that are unrelated to the maintenance requirement are discovered, the maintenance requirement can be X'd off, but the discrepancy must be reported to the workcenter supervisor. PMS requirements (other than daily checks) accomplished during the prescribed week but not on the day specified  are  considered  completed  on schedule and X'd off. 3. Each  Monday  morning,  the  division  officer compares  the  preceding  week's  Weekly  PMS Schedule   with   the   Quarterly   Schedule   and ensures that the Quarterly Schedule is properly updated as follows: a. Scheduled requirements that were completed are X'd out. b. Scheduled   requirements   that   were   not completed are circled. c. Situation  requirements  that  occurred  and were completed are entered and X'd off. d. Requirements  that  were  completed  ahead of schedule are circled, back scheduled and X'd out. 4. Each  Monday  morning,  the  division  officer reviews    the    current    week's    Weekly    PMS Schedule, ensures that it is properly made out according to the Quarterly Schedule, and signs and dates the Weekly Schedule in the appropriate block. REVIEW QUESTIONS Q4. What maintenance requirements do the cycle schedules display? Q5. All  superseded  cycle  schedules  are  retained for how many months? Q6. How often is the quarterly schedule updated? THE MAINTENANCE DATA SYSTEM LEARNING OBJECTIVES: State the purpose  of  the  Maintenance  Data  System  and describe   the   types   of   maintenance   actions reported   on   the   following   OPNAV   forms: 4790/2K, 4790/CK, 4790/2P. The  Maintenance  Data  System  is  used  to  record information considered necessary for workload planning  and  coordination  and  to  provide  a  data  base for evaluating and improving equipment installed in the fleet. Much of the data collected by MDS returns to the ship  in  the  form  of  a  material  history  known  as  the Current Ship's Maintenance Project (CSMP). Nearly  all  the  reporting  of  maintenance  actions other  than  normal  PMS  actions  is  done  on  a  single multipurpose   form,   the   Ship's   Maintenance   Action Form,   OPNAV   4790/2K.   Personnel   completing   a maintenance action fill out the appropriate sections of the form and send it via the ship's data collection center to  an  ADP  (automatic  data  processing)  facility  to  be processed.  The  4790/2K  contain  information  on  the reporter's ship, workcenter, equipment worked on, and initial  symptoms  observed.  In  other  sections,  space  is provided to record completion information, deferral of the  work  for  various  reasons,  remarks,  and  special information for work requests. A space also exists for recording time meter and counter readings where they are required. Normally,   the   following   types   of   maintenance actions  will  be  reported  on  the  4790/2K:  system  or equipment    repairs    or    improvements;    maintenance actions   that   require   the   use   of   parts   or   materials specifically   requisitioned   for   the   job;   actions   that cannot be completed in the usual amount of time due to the ship's operations; requirements for outside assistance,   or   unavailability   of   parts   or   material; assistance  received  from  nonreporting  activities,  such as    mobile    technical    training    units    (MOTUs)    or technical  representatives;  major  work  associated  with corrosion  control  and  preservation  of  the  ship;  and certain   PMS   actions   listed   in   the   3-M    Manual, OPNAVINST 4790.4. 7-21