inspection,  using  the  appropriate  PM  Service  and Inspection   Guide. The   relieving   maintenance supervisor is required to schedule the other 50 percent of CESE on site. The Type C inspection is performed on  a  scheduled  PM  date  that  least  effects  operational commitments. The  Naval  Construction  Force  (NCF)  PM  Service and   Inspection   Guide   is   outlined   in   the   Naval Construction   Force   Equipment   Management Manual,  NAVFAC P-404, and  Equipment  Manage- ment,  COMSECOND/COMTHIRDNCBINST 11200.1 Series. Repair  Parts The  NAVFAC  repair  parts  allowance  required  for a   NCF   unit’s   assigned   organic   and   augment equipment is contained in the Consolidated Seabee Allowance  List  (COSAL).  These  repair  parts  are funded by NAVFAC. COSALS are published under the authority contuined in the NAVFAC or NAVSUP progrtim  support  agreement  by  Navy  Ships  Parts Control  Center  (SPCC),  Mechanicsburg. COSALS.—  COSALS  are  both  technical  and supply  documents.   They are technical documents in that equipment nomenclature, operating characteristics, technical manuals, and so forth, are described  in  the  Allowance  Parts  Lists. They are supply  documents  because  they  list  all  parts  by manufacturer’s  code  and  part  number,  national  stock number, unit of issue, price and quantity authorized by   NAVFAC   maintenance   policy.   Repair   parts allowances  are  designed  to  provide  a  90  percent effectiveness for  1,800 construction hours or 90 days support. The 90-day period is defined as a 3-month utilization   period   for   CESE   in   new   or   like-new condition. CATEGORIES.—  Repair parts are divided into two   basic   categories: parts peculiar,  NAVSUP modifier  code  98,  and  parts  common,   NAVSUP modifier   code   97. These   are   published   in   two separate  COSALS. Parts peculiar are applicable only  to  specific  makes  or  models  of  equipment.  Parts common are general repair type of items and are not referenced  to  any  specific  equipment.  Military  and commercial operator’s manuals, parts manuals, and maintenancee manuals are listed in the parts peculiar to a COSAL. A descriptive accout showing the method of entry and how to usc the COSAL is contained in appendix  F  of  the  COSAL  instruction. The third category of repair parts is the NAVSUP modifier code 98. The mod 96 is a minimodifier 97 for  use  with  an  air  detachment  or  an  extended detachment  without  jeopardizing  the  main  body.  The mod 96 repair parts allowance is designed to provide 90 days support. Equipment Repair Order The  Equipment  Repair  Order  (ERO),  NAVFAC 11200/41  (figs.  1-20  and  1-21),  and  the  ERO Continuation Sheet, NAVFAC 11200/41A (fig. 1-22), are used in the NCF to record cost of repairs, hours required  for  repairs,  and  total  time  that  equipment  is out of service. The ERO data help the NCF in budget planning,  determining  life  expectancies  of  equipment, and   predicting   future   equipment   and   training requirements. The  Civil  Engineer  Support  Office, Port Hueneme, California, uses the data to compile cost   and   utilization   figures   on   each   piece   of USN-numbered  equipment. The  ERO  Continuation  Sheet  is  used  with  the ERO  when  the  number  of  repair  items  exceed  the spaces provided on the ERO. The Equipment Repair Order  (ERO)  Work  Sheet,  NAVFAC  11200/41B (fig. 1-23), is used on site to record repair parts use and is filed with the complete ERO in the equipment history  jacket. The ERO is the sole authority to perform work on equipment   regardless   of   whether   the   work   is performed  in  the  field  or  in  the  shop.  An  ERO  is required each time labor exceeds 1 hour or materials are  expended  on  scheduled  PM,  interim  repairs, modernization  or  alteration  of  equipment,  or  deadline cycling  or  preservation  of  equipment.  The  Equipment Repair Order Log Sheet (fig. 1-15) is used to track the status of the EROs. LIVE  STORAGE  PROGRAM The  Naval  Construction  Battalions  deployed  at main  body  sites  are  assigned  numerous  pieces  of CESE   to   support   contingency,   emergency,   and peacetime   construction   operations.   Peacetime construction operations do not require the use of the full allowance of CESE that results in a number of pieces   being   placed   in   extended   periods   of nonutilization.  This  equipment  absorbs  maintenance man-hours,  deteriorates,  and  could  possibly  be improperly  used. The  maintenance  supervisor  controls  the  Live Storage  Program  developed  to  reduce  maintenance hours  spent  on  CESE.  The  Live  Storage  Branch  is adequately   staffed   with   skilled,   experienced mechanics  and  equipment  operators. 1-25