* Complete Repair Maintenance capacity. capabil-
ity, and authority to perform all corrective mainte-
nance tasks of the Repair function in a use/user
environment in order to restore serviceability to a
(1) Source Code. The source code tells you
how to get an item needed for maintenance, repair, or
overhaul of an end item/equipment Explanations of
source codes follows:
Stocked items; use the applicable NSN to
request/requisition items with these source
codes. They are authorized to the category
indicated by the code entered in the 3d
position of the SMR code.
** Items coded PC are subject to
Items with these codes are not to be
requested/requisitioned individually. They
are part of a kit which is authorized to the
maintenance category indicated in the 3d
position of the SMR code The complete
kit must be requisitioned and applied
Item with these codes are not to
individually. They must be made
AL- (Assembled by
ML (Made at Spe-
Act (SRA) MD-
MO-(Made at UM/
MF-(Made at DS/
from bulk material which is
identified by the part number
the the DESCRIPTION AND
USABLE ON CODE (UOC)
column and listed in the Bulk
Material group code repair parts
list in this RPSTL. If the item is
authorized to you by the 3d
position code of the SMR code,
but if the source code indicated it
is made at a higher level, order
the item from the higher level of
Item these codes are not
to be requested/requisitioned
individually. The parts that
make up the assembled item
must be requisitioned or
fabricated and assembled at
the level of maintenance
indicated by the source code.
If the 3d position code of the
SMR code authorizes you to
replace the item, but the
source code indicates the item
is assembled at a higher level,
order the item from the higher
level of maintenance.
Do not requisition an XA-coded item.
Order its next higher assembly. (Also,
refer to the NOTE below).
If an XB item is not available from
salvage, order it using the CAGE and
part number given.
Installation drawing, diagram, instruction
sheet, field service drawing, that is
identified by the manufacturers part
Item IS not stocked. Order and XD-
coded item through normal supply
channels using the CAGE and part
number given, if no NSN is available.
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 X4 or those aircraft support
items restricted by requirements of AR 700-42.
(2) Maintenance Code. We. Maintenance codes tells
you the Ievel of maintenance authorized to USE
and REPAIR support items. The maintenance codes
are entered in the third and fourth posittons 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 in-
dicate authorization to one of the following levels of
Crew or operator maintenance done within
unit or aviation unit maintenance.
Unit maintenance or aviation unit category
can remove, replace. and use the item.
Direct support or aviation intermediate
level can remove, replace, and use the
General support level can remove,
replace, and use the item.