TM9-2330-376-14&P
F - 3 . EXPLANATION OF COLUMNS (SECTIONS II AND Ill) (Con't).
XC - Installation drawing, diagram, instruction sheet, field service drawing, that Is identified by manufacturer's part
number.
XD - Item is not stocked. Order an "XD"-coded item through normal supply channels using the CAGE and part
number given, if no NSN is available.
(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:
The maintenance code entered in the third position tells you the lowest maintenance level
(a)
authorized to remove, replace, and use an item. me maintenance code entered in the third
position will indicate authorization to one of the following levels of maintenance.
Application/Explanation
Code
C
Crew or operator maintenance done within unit maintenance or aviation unit
maintenance.
Unit maintenance or aviation unit can remove, replace, and use the item.
O
F
Direct support or aviation intermediate level can remove, replace, and use
the item.
H
General support level can remove, replace, and use the item.
L
Specialized repair activity can remove, replace, and use the item.
D
Depot level can remove, replace, and use the item.
NOTE
Some Iimited repair may be done on the Item at a lower level of maintenance, If
authorized by the Maintenance Allocation Chart (MAC) and SMR codes.
(b) The maintenance code entered in the fourth position tells whether or not the item is to be
repaired and identifies the lowest maintenance level with the capability to do complete repair
(i.e., perform all authorized "Repair" functions). This position will contain one of the following
maintenance codes:
Application/Explanation
Code
- Unit maintenance or aviation unit is the lowest level that can do complete
o
repair of the item.
- Direct support or aviation intermediate is the lowest level than can do com-
F
plete repair of the item.
- General support is the lowest Ievel that can do complete repair of the item.
H
-- Specialized repair activity is the lowest level that can do complete repair of
L
the item.
- Depot is the lowest level that can do complete repair of the item.
D
- Nonreparable. No repair is authorized.
Z
- No repair is authorized. (No parts or special tools are authorized for the
B
maintenance of a "B"-coded item.) However, the item may be reconditioned
by adjusting, lubricating, etc., at the user level.
F-3
