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TM 10-4930-250-13&P
NOTE
Cannibalizationor controlledexchange,when authorized,may be usedas a source of supplyfor
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 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
indicate authorization to one of the following levels of maintenance.
Maintenance
Application/Explanation
Code
C
Crew or operator maintenance done within unit/AVUM
maintenance.
0
Unit level/AVUM
maintenance can remove, replace and use the item.
F
Direct support/AVIM
maintenance can remove, replace and use the item.
H
General support maintenance
can remove, replace and use the item,
L
Specialized repair activity
can remove, replace and use the item.
D
Depot can remove, replace and use the item.
(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).
NOTE
Some limited repair may be done on the item at a lower level of maintenance,
if authorized
by the Maintenance
Allocation
Chart and SMR code.
Maintenance
Application/Explanation
Code
0
Unit/AVUM
is the lowest level that can do complete repair of the item.
F
Direct support/AVIM
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
Nonreparable.
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.
C-3
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