TM 5-6675-331-14&P
Maintenance
Code
Explanation
C - Crew or operator maintenance done within unit/AVUM maintenance.
O - Unit level VAVUM 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.
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.
NOTE
Some limited repair may be done on an 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
Explanation
O - Organizational or (aviation unit) is the lowest level that can do complete repair of the item.
F - Direct support or aviation intermediate 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 (designate the specialized repair activity) is the lowest level that can do complete
repair of the item.
D - Deport is the lowest level that can do complete repair of the item.
Z - Nonrepairable. No repair is authorized.
H - 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.
F-4
