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SECTION I
TM 9-2320-270-34P
(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:
Code
Application/Explanation
PA
Stocked items; use the applicable NSN to
PB
request/requisition items with these source
PC**
codes. They are authorized to the category
PD
indicated by the code entered in the 3d
PE
position of the SMR code.
PF
PG
l *Items coded PC are subject to deteriora-
tion.
KD
Items with these codes are not to be re-
KF
quested/requisitioned individually .They are
KB
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.
MO-(Made at UM/
AVUM Level)
MF-(Made at IDS
AVUM Level)
MH-(Made at IGS
Level)
ML-(Made at Spe-
cialized Repair
Act (SRA))
MD-(Made at Depot)
AO-(Assembled by
UM/AVUM Level)
AF-(Assembled by
IDS/A VIM Level)
AH-(Assembled by
IGS Category
AL-(Assembled by
SRA)
AD-(Assembled by
Depot)
terns with these codes are not
o be requested/requisitioned
n d i v i d u a l l y . T h e y m u s t b e
made from bulk material which
s identified by the part num-
b e r i n t h e D E S C R I P T I O N
A N D U S A B L E O N C O D E
(UOC) column and listed in
he Bulk Material group of the
repair parls list in this RPSTL.
f the item is authorized to you
by the 3d position code of the
SMR code, but the source
code indicates it is made at a
higher level, order the item
from the higher level of main-
tenance.
Items with these codes are not
to be requested/requisitioned
ndividually . The parts that
make up the assembled item
must be requisitioned or fabri-
cated 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
itern, but the source code indi-
cates the item is assembled at
a higher level, order the item
from the higher level of main-
tenance.
requisition an
XA-coded
XA -
Do not
item. Order its next higher assembly. (Also,
refer to the NOTE below.)
XB -
If an XB* item is not available from sal-
vage, order it using the FSCM and part
number given.
XC -
Installation drawing, diagram, instruction
sheet, field service drawing, that is iden-
tified by the manufacturers 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 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 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.
Code
Application/Explanation
C .
Crew or operator maintenance done within
unit maintenance or aviation unit main-
tenance.
O .
Unit maintenance or aviation unit category
can remove, replace, and use the item.
F .
Intermediate Direct support or aviation in-
termediate level can remove, replace, and
use the item.
H .
Intermediate General support level can
remove, replace, and use the item.
L .
Specialized repair activity can remove,
replace, and use the item.
D.
Depot level 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., peform
all authorized repair functions.) (NOTE: Some limited
repair may be done on the item at a lower level of
m a i n t e n a n c e , 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
Allocation Chart (MAC) and SMR codes.) This position
will contain one of the following maintenance codes:
2
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