TM 10-3990-205-12&P
SECTION I
(1) S o u r c e C o d e . The source code tells you
XB-
If an "XB" item is not available from salvage,
how to get an item needed for maintenance, repair, or
order it using the CAGE and part number giv-
overhaul of an end item/equipment. Explanations of
en.
source codes follows:
Installation drawing, diagram, instruction
XC-
Application/Explanation
sheet, field service drawing, that is iden-
Code
tified by the manufacturer's part number.
Stocked items; use the applicable NSN to
PA
XD-
request/requisition items with these source
Item is not stocked. Order an "XD"-coded
PB
codes. They are authorized to the category
PC**
item through normal supply channels using
indicated by the code entered in the 3d
PD
the CAGE and part number given, if no NSN
position of the SMR code.
PE
is available.
PF
NOTE: Cannibalization or controlled exchange, when
**Items coded PC are subject to deteriora-
PG
authorized, may be used as source of supply for items
tion.
with the above source codes, except for those source
coded "XA" or those aircraft support items restricted by
Items with these codes are not to be re-
KD
requirements of AR 700-42.
quested/requisitioned individually. They are
KF
part of a kit which is authorized to the
KB
(2) Maintenance Code. Maintenance codes tell
maintenance category indicated in the 3d
you the level(s) of maintenance authorized to USE and
position of the SMR code. The complete
REPAIR support items. The maintenance codes are
kit must be requisitioned and applied.
entered in the third and fourth positions of the SMR
Code as follows:
Items with these codes are not
MO-(Made at UM/
to be requested/requisitioned
A VUM Level)
(a) The maintenance code entered in the
individually. They must be
third position tells you the lowest maintenance level
MF-(Made at IDS/
made from bulk material which
authorized to remove, replace, and use an item. The
AVUM Level)
is identified by the part num-
maintenance code entered in the third position will
ber in the DESCRIPTION
MH-(Made at IGS
indicate authorization to one of the following levels of
AND USABLE ON CODE
Level)
maintenance.
(UOC) column and listed in
the Bulk Material group of the
ML-(Made at Spe-
Application/Explanation
Code
repair parts list in this RPSTL.
cialized Repair
Crew or operator maintenance done within
If the item is authorized to you
Act (SRA))
C-
by the 3d position code of the
unit maintenance or aviation unit main-
MD-(Made at Depot)
tenance.
SMR code, but the source
code indicates it is made at a
Unit maintenance or aviation unit category
O-
higher level, order the item
can remove, replace, and use the item.
from the higher level of main-
tenance.
(b) The maintenance code entered in the
fourth position tells whether or not the item is to be
Items with these codes are not
AO-(Assembled by
repaired and identifies the lowest maintenance level
to be requested/requisitioned
UM,/AVUM Level)
with the capability to do complete repair (i.e., perform
individually. The parts that
all authorized repair functions.) (NOTE: Some limited
AF-(Assembled by
make up the assembled item
repair may be done on the item at a lower level of
IDS/AVIM Level)
must be requisitioned or fabri-
maintenance, i f a u t h o r i z e d b y t h e M a i n t e n a n c e
cated and assembled at the
AH-(Assembled by
Allocation Chart (MAC) and SMR codes.) This position
level of maintenance indicated
IGS Category
will contain one of the following maintenance codes:
by the source code. If the 3d
position code of the SMR code
AL-(Assembled by
Code
Application/Explanation
authorizes you to replace the
SRA)
O-
item, but the source code indi-
Unit maintenance or Aviation unit is the
AD- (Assembled by
cates the item is assembled at
lowest level that can do complete repair of
Depot),
a higher level, order the item
the item.
from the higher level of main-
Intermediate Direct support or aviation in-
F-
tenance.
termediate is the lowest level that can do
r e q u i s i t i o n a n "XA"-coded
complete repair of the item.
Do
not
XA -
item. Order its next higher assembly. (Also,
H-
Intermediate General support is the lowest
refer to the NOTE below.)
level that can do complete repair of the
item.
F-2
Change 1
