TM-9-2815-220-34P Parts Manual and Special Tools for AVDS-1790-2CA, AVDS-1790-2DA and AVDS-1790-2DR engines Download

SECTION I TM9-2815-220-34P (1 ) Source Code. The source code tells you how to get an item needed for maintenance, repair or overhaul of an end item/equipment. Explanations of source codes follows: Code PA PB PC** PD PE PF PG KD KF KB Application/Explanation Stocked items; use the applicable NSN to request/requisition items with these source codes. They are authorized to the category indicated by the code entered in 3d position of the SMR code. **Items coded PC are subject to deteriora- tion. Items with these codes are not to be requested/requisitioned individually. They are part of a kit which is authorized to the maintenance category indicated in the 3d position of the SMR code. The complete kit must be requisitioned and applied. MO-(Made at UM AVUM Level) MF-(Made at DS/ AVUM Level) ML-(Made at Specialized Repair Act (SRA)) MD-(Made at Depot) AO-(Assembled by UM/AVUM Level) AF-(Assembled by DS/AVIM Level) AH-(Assembled by GS Category) AL-(Assembled by SRA) Items with these codes are not to be requested/ requisitioned individually. They must be made from bulk material which is identi fied by the part number in the DESCRIPTION AND USABLE ON CODE (UOC) column and listed in the Bulk Material group of the repair parts list in this RPSTL. If the item is authorized to you by the 3d position code of the SMR code, but if the source code indicates it is made at a higher level, order the item from the higher level of mainten- ance. Items with these codes are not to be requested/requisitioned individually The parts that make up the assembled item must be requisitioned or fabrica ted and assembled at the level of maintenance indicated by the source code. If the 3d posi- tion code of the SMR code by authorizes you to replace the item, but the source code indi- AD-(Assembled cates the item is assembled at a by Depot) bled at a higher level, order the item from the higher level of maintenance. XA- Do not requisition an “XA”–coded ltem. Or- der its next higher assembly. (Also, refer to the NOTE below.) XB- If an “XB” item is not available from salvage order it using the CAGE and part number given xc- Installation drawing, diagram, instruction sheet, field service drawing, that is identi- fied by the manufacturer’s part number. XD- Item is not stocked. Order an “XD”- coded item through normal supply chan- nels using the CAGE and part number given, if no NSN is available. NOTE: Cannibalization or controlled exchange, when authorized, may be used as source of supply for items with the above source codes, except for those source coded “XA” or those aircraft support items restricted by requirements of AR 700-42. (2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and REPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR Code as follows: (a) The maintenance code entered in the third position tells you the lowest maintenance level authorized to remove, replace and use an item. The maintenance code entered in the third position will indi- cate authorization to one of the following levels of main- tenance: Code C - O - F - H - L - Appication/Explanation Crew or operator maintenance done within unit or aviation unit maintenance. Unit maintenance or aviation unit category can remove, replace and use the item. Direct support or aviation intermediate level can remove, replace and use the item. General support level can remove, replace and use the item. Specialized repair activity can remove, re- place and use the item. 2