AF-(Assembled by Intro
AH-(Assembled by Intro
AL-(Assembled by SRA)
Items with these codes are not to be requested/requi-
sitioned individually. The parts that make up the as-
sembled 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 fron the higher level of
XA - Do not requisition an XA-coded item.
Order its next higher assembly.
(Also, refer to the NOTE below.)
XB - If an -XB- item is not available from salvage, order it using the FSCM
and part number given.
xc - Installation drawing, diagram, instruction sheet, field service drawing,
that is identified by 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.
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 XA or those aircraft support items restricted by requirements of
(2) Maintenance Code. Maintenance codes tell you the level(s) of mainte-
nance 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, anc use an item. The
maintenance code entered in the third position will indicate authorization to
one of the following levels of maintenance.
Crew or operator maintenance done within organizational or
aviation unit maintenance.
Organizational or aviation unit category can remove, replace,
and use the item.
Intermediate direct support or aviation intermediate level can
remove, replace, and use the item.
Intermediate general support level can remove, replace, and use
Specialized repair activity can remove, replace, and use the
Depot level can remove, replace, and use tile item.