PLANNED MAINTENANCE SYSTEM provide enough information for the CSO to develop the mission  summary  reports. The  SERT  must  evaluate,  monitor,  and  report system status during competitive and fleet exercises. This  includes  organizing  and  instructing  observers, preparing recording forms, defining data requirements, collecting   and   evaluating   data,   and   preparing   a composite  internal  report.  These  reports  should  be limited to an evaluation of combat system materiel and personnel  readiness  during  the  exercise. ALIGNMENT LOGS During  PMS  activities  and  exercises,  the  SERT  is responsible  for  determining  the  mechanical  and electrical  alignment  of  interrelated  combat  system functions.  The  SERT  must  also  assess  the  impact  of  a misalignment on the mission. When SERT members brief subsystem and equipment personnel before an exercise  or  mission,  they  must  emphasize  the  need  for caution   when   making   adjustments   to   equipment subsystems that may in turn affect the total combat system  alignment.  Alignment  tests  and  efforts  to reestablish   reference   standards   are   complex   and time-consuming.   They   frequently   require   shore facilities,  ideal  environmental  conditions,  and  extensive data   collection.   Technicians   should   avoid   making realignments that, because of incomplete or inaccurate reference data, result in inefficient use of manpower and resources.  Experience  has  shown  that  unnecessary alignment  efforts  can  be  avoided  if  reference  data  are kept  current,  accessible,  and  in  a  form  that  can  be interpreted  by  all  team  members.  Therefore,  a  combat system alignment smooth log (if not already in effect) must  be  maintained  and  kept  current  and  accurate.  A total combat system alignment manual for the class of ship  (with  combat  system)  should  be  available  (separate from CSTOM). The manual should explain the purpose of total combat system alignment, provide management data needed for the analysis and troubleshooting of alignment  problems,  and  provide  step-by-step procedures needed for combat system alignment. INTEGRATED  MAINTENANCE CONCEPTS This section of the chapter describes the planned maintenance  system  (PMS)  as  it  relates  to  the maintenance  documentation  of  a  typical  integrated combat system. Combat  system  readiness  requires  efficient  main- tenance. The key to this capability is an organized system of planned maintenance that is designed to ensure the maximum operational readiness of the combat system. The  OPNAVINST  4790.4,  Ships’  Maintenance  and Material  Management  (3-M)  Systems,  sets  forth  an effective   PMS   and   assigns   PMS   management responsibility. The  PMS  provides  regularly  scheduled  tests  to detect  degraded  performance  and  prevent  failures (preventive maintenance) during tactical operations. When  failures  occur  during  combat  system  operations, the  PMS  provides  a  formal  step-by-step  fault  isolation and   repair   procedure   (corrective   maintenance). Complete technical documentation, including combat system,  subsystem,  and  individual  equipment  manuals, is an integral part of the PMS. These manuals provide the  necessary  information  for  understanding,  operating, and  maintaining  the  combat  system. Shipboard  maintenance  falls  into  the  three following   categories: 1. 2. 3. Maintenance  within  the  capability  of  ship personnel  (organizational  level) Maintenance  requiring  assistance  from  outside the ship (intermediate level) such as a tender or mobile technical unit Maintenance  requiring  port  facilities  (depot level) such as shipyard maintenance Since the goal of PMS is to perform maintenance on the organizational or intermediate level, depot level maintenance is not reflected in PMS. The PMS is a planning and control system that prescribes  a  logical  and  efficient  approach  to  complex mechanical, electrical, and electronic maintenance. The PMS  was  developed  to  provide  supervisors  at  each maintenance   level   with   methods   for   effectively planning,  scheduling,  and  controlling  shipboard maintenance. It includes a maintenance data collection system   used   to   record   important   scheduled   and corrective  maintenance  information,  and  electronic  data processing  capabilities  used  to  retrieve  this  information for  maintenance  analysis. You  should  already  be  familiar  with  the  3-M Systems at this point in your career as an ET; however, we will summarize the planned maintenance system and will then add information on the integrated combat system  concept. 4-19