AH-- Item is to be assembled at general support
O-- The lowest maintenance level capable of com-
plete repair of the support item is the
AD- Item is to be assembled at depot maintenance
F-- The lowest maintenance level capable of com-
XA-- Item is not procured or stocked because the
plete repair of the support item is the direct
requirements for the item will result in the
replacement of the next higher assembly.
H-- The lowest maintenance level capable of com-
XB-- Item is not procured or stocked. If not availa-
plete repair of the support item is the general
ble through salvage, requisition.
XC-- Installation drawing, diagram, instruction
D-- The lowest maintenance level capable of com-
sheet, field service drawing, that is identi-
plete repair of the support item is the depot
fied by manufacturer's part number.
XD-- A support item that is not stocked. When re
L-- Repair restricted to designated specialized re-
quired, item will be procured through nor-
mal supply channels.
Z-- Nonreparable. No repair is authorized.
B-- No repair is authorized. The item may be recon-
Cannibalization or salvage may be used as
ditioned by adjusting, lubricating, etc., at the
a source of supply for any items source
user level. No parts or special tools are pro-
coded above except those coded XA and
cured for the maintenance of this item.
aircraft support item as restricted by AR
(3) Recoverability code. Recoverability
codes are assigned to support items to indicate
the disposition action on unserviceable items.
(2) Maintenance code. Maintenance codes are
The recoverability code is entered in the fifth
assigned to indicate the levels of maintenance authorized
position of the Uniform SMR Code format
to USE and REPAIR support items. The maintenance
codes are entered in the third and fourth positions of the
Uniform SMR Code format as follows:
(a) The maintenance code entered in the third
position will indicate the lowest maintenance level
authorized to remove, replace, and use the support
Z-- Nonreparable item. When unserviceable, con-
item. The maintenance code entered in the third posi-
demn and dispose at the level indicated in tion
will indicate one of the following levels of mainte-
O-- Reparable item. When uneconomically repara-
ble, condemn and dispose at organizational
C-- Crew or operator maintenance performed within
F-- Reparable item. When uneconomically repara-
ble, condemn and dispose at the direct support
O-- Support item is removed, replaced, used at the
H-- Reparable item. When uneconomically repair-
F-- Support item is removed, replaced, used at the
ble, condemn and dispose at the general sup-
direct support level.
H-- Support item is removed, replaced, used at the
D-- Reparable item. When beyond lower level
general support level.
repair capability, return to depot
D-- Support items that are removed, replaced, used
Condemnation and disposal not authorized
at depot, mobile depot, specialized repair ac-
below depot level.
L-- Reparable item. Repair, condemnation, and dis-
(b) The maintenance code entered in the fourtth
posal not authorized below depot/specialized
positions indicates whether the item is to be repaired
repair activity level.
and identifies the lowest maintenance level with the
A-- Item requires special handling or condemnation
capability to perform complete repair (i.e., all author-
procedures because of specific reasons (i.e.,
ized maintenance functions). This position will con-
precious metal contents, high dollar value,
tain one of the following maintenance codes:
critical material or hazardous material). Refer
to appropriate manuals/directives for specific
c. National Stock Number. Indicates the National