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TM 55-8145-221-14&P
0049 00-3
REFRIGERATED CONTAINER SYSTEM
REPAIR PARTS AND SPECIAL TOOLS LIST – Continued
0049 00
NOTE
Cannibalization or controlled exchange, when authorized, may be used as a 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 750-1.
(2)
Maintenance Code. Maintenance codes tell you the level(s) of the 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)
Third Position. 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 indicate
authorization to one of the following levels of maintenance.
Maintenance
Code
Application / Explanation
C
-
Crew or operator maintenance done within organizational or aviation unit maintenance.
O
-
Organizational or aviation unit category can remove, replace, and use, the item.
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.
(b)
Fourth Position. 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).
NOTE
Some limited repair may be done, on the item at a lower level of maintenance, if
authorized by the Maintenance Allocation Chart (MAC) and SMR codes. This position
will contain one of the following maintenance codes:
Maintenance
Code
Application/Explanation
O
-
Organizational or aviation unit is the lowest level that can do complete repair of the item.
F
-
Direct support or aviation intermediate level is the, lowest level that can do complete repair of the item.
H
-
General support is the lowest level that can do complete repair of the, item.
L
-
Specialized repair activity is the lowest level that can do complete repair of the item.
D
-
Depot is the lowest level that can do complete repair of the, item.
Z
-
Non-repairable. No repair is authorized.
B
-
No repair is authorized. (No parts or special tools are authorized for the maintenance of a “B” coded item.)
However, the item may be reconditioned by adjusting, lubricating, etc., at the user level move, replace, and
use the item.
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