ARMY TM 9-2815-256-24P
AIR FORCE TO 38G1-96-4
MARINE CORPS TM 2815-24P/3
3.
Explanation of Columns (Sections II and III). - (Continued)
X A - Do not requisition an "XA''-coded item.
Order its next higher
assembly.
(Also,
refer to the NOTE below.)
XB - If an "XB" item is not available from salvage, order it using
the FSCM and part number given.
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 FSCM and part number given,
if no NSN is available.
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 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 3rd and 4th positions of
the SMR Code as follows:
(a) The
maintenance
code
entered in
the
3rd
position tells you
the lowest maintenance level authorized to
remove,
replace,
and use an item.
The maintenance code entered in
the 3rd position will
indicate
authorization to one of the
following levels of maintenance.
Code
C
Application/Explanation
-Crew or operator maintenance done within
organization 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.
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