Maintenance Code. - TM-10-3930-631-24P0009

TM 10-3930-631-24P

UNIT, DIRECT SUPPORT AND GENERAL SUPPORT

Code

Application/Explanation

NOTE

Cannibalization

controlled

Stocked items; use the applicable NSN to

request/requisition items with these source

exchange, where authorized, may be

PC**

codes. They are authorized to the category

used as a source of supply for items

indicated by the code entered in the 3d

with the above source codes, except

position of the SMR code.

for those source coded "XA" or

** Items coded PC are subject to

those

aircraft

support

items

deterioration.

restricted by requirements of AR 700-

42.

Items with these codes are not to be

requested/requisitioned individually. They

are part of a kit which is authorized to the

(2) Maintenance Code. Maintenance codes

maintenance category indicated in the 3d

tell you the level(s) of maintenance authorized to USE

position of the SMR code. The complete kit

must be requisitioned and applied.

and REPAIR support items. The maintenance codes

are entered in the third and fourth positions of the SMR

MO-(Made at UMI

Items with these codes are not to

code as follows:

AVUM Level)

be requested/requisitioned

(a) The maintenance code entered in

MF-Made at DS\

individually. They must be made

the third position tells you the lowest maintenance level

AVUM Level)

from bulk

material which

MH-(Made at GS

identified by the part number in

authorized to remove, replace, and use an item. The

Level)

the DESCRIPTION AND USABLE

maintenance code entered in the third position will

ML-(Made at Spe-

ON CODE (UOC) column and

indicate authorization to one of the following levels of

cialized Repair

listed in the Bulk Material group

maintenance.

Activity (SRA))

of the repair parts list in this

MD-(Made at

RPSTL. If the item is authorized

Depot)

to you by the 3d position code of

Code

Application/Explanation

the SMR code, but the source

code indicates it is made at a

C-

Crew or operator maintenance done within

higher level, order the item from

unit maintenance or aviation unit mainte-

the higher level of maintenance.

nance.

O-

Unit maintenance or aviation unit category

Items with these codes are not to

can remove, replace, and use the item.

be requested/requisitioned

F-

Direct support or aviation intermediate level

AO-(Assembled by

individually. The parts that make

can remove, replace, and use the item.

UM/AVUM

up the assembled item must be

H-

General support level can remove, replace,

Level)

requisitioned or fabricated and

and use the item.

AF-(Assembled by

assembled at the level of

L-

Specialized repair activity can remove, re-

DSAVIM

maintenance indited by the

place, and use the item.

Level)

source code. If the 3d position

D-

Depot level can remove, replace, and use

AH-(Assembled by

code of the SMR code

the item.

GS Category)

authorizes you to replace the

AL-(Assembled by

item, but the source code

(b) The maintenance code entered in

SRA)

indicates the item is assembled

the fourth position tells whether or not the item is to be

AD-(Assembled by

at a higher level, order the item

Depot)

from the higher level of

repaired and identifies the lowest maintenance level

maintenance.

with the capability to do complete repair (i.e., perform all

authorized repair functions). (NOTE: Some limed

XA -

Do not requisition an "XA-coded item. Or-

repair may be done on the item at a lower level of

der its next higher assembly. (Also refer to

maintenance, if authorized by the Maintenance

the NOTE following.)

XB -

If an "XB" item is not available from salvage,

Allocation Chart (MAC) and SMR codes.) This

order it using the CAGE and part number

position will contain one of the following maintenance

given.

codes:

XC-

Installation drawing, diagram, instruction

sheet, field service drawing, that is identified

by the manufacturer's part number.

Code

Application/Explanation

XD -

Item is not stocked. Order an "XD"-coded

item through normal supply channels using

O-

Unit maintenance or aviation unit is the low-

the CAGE and part number given, if no NSN

est level that can do complete repair of the

is available.

item.

F-

Direct support or aviation intermediate is the

lowest level than can do complete repair of

the item.