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Figure 5-3.COSAL index, part 1, section C.
ALLOWANCE EQUIPAGE LIST (AEL)

Engineering Administration - Administrative Structural engineering guide book
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11. 12. 13. 14. 15. 16. Preliminary   equipment   location:  Identifies location  within  ship  of  the  installed  component. Service number/valve mark/electrical symbol number:  Serial number identifies a specific unit of  production.  Valve  mark/electrical  symbol number  identifies  a  specific  valve  or  electrical component  used  within  a  system  when  multiple applications  of  the  same  component  are  present within the same system. Federal   supply   code   for   manufacturers: Identifies  a  specific  manufacturer  for  an equipment/component. Ship type and hull number: The specific ship for which the COSAL is published. Date: COSAL publication date. Page no.: Page number of index. ALLOWANCE PARTS LIST (APL)  .– The APL is a technical document prepared for a specific item or component  of  equipment.  It  lists  descriptive  data  and characteristics of the equipment, repair parts, and other technical and supply management information. The COSAL binder should contain an APL for every item or component of equipment on board the ship. Each  APL  is  assigned  a  nine-digit  identifying number  by  SPCC.  The  first  two  digits  identify  the equipment/component category and are listed in an index in the COSAL introduction. The APLs are filed in numerical sequence in part II of the COSAL. You may find an APL number containing a letter P prefix.  This  indicates  an  incomplete  APL.  The  body  of the APL usually tells why it is incomplete and the action being  taken  or  required  to  complete  it. An   APL   will   not   always   cover   a   complete equipment;  refer  to  the  section  B  index  (fig.  5-2).  The second entry is FEEDWATER SYSTEMS TESTING EQUIPMENT.  This  is  the  name  of  a  complete  system or  equipment  for  the  feedwater  system  test  equipment. Column 2 lists the various feedwater test equipment components, each of which, in this case, has its own APL number.  Therefore,  the  APL  may  cover  a  complete equipment or only one component of that equipment. An example of an APL page is shown in figure 5-4. The different data elements are numbered and refer to the numbers in the following list. 1.  Equipment/component    nomenclature/ characteristics:    Name   of   equipment   or component   and   brief   description.   This corresponds  to  the  index  entries. Figure 5-4.-Example of an APL. 5-9







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