Section I. INTRODUCTION - TM-11-6625-564-20P0005

TM 11-6625-564-20P

SECTION I

INTRODUCTION

1. Scope

NOTE

Cannibalization or salvage may be used

This manual lists spares and repair parts; special

as a source of supply for any items source

tools; special test, measurement, and diagnostic

coded above except those coded XA and

equipment (TMDE), and other special support

aircraft support items as restricted by

equipment required for performance of

AR 700-42.

organizational maintenance of the MK-731/AR-

(2) Maintenance code. Maintenance codes are

C-51X, MK-731A/ARC-51X. It authorizes the

assigned to indicate the levels of maintenance

requisitioning and issue of spares and repair parts

authorized to USE and REPAIR support items. The

as indicated by the source and maintenance codes.

maintenance codes are entered in the third and four-

2. General

th positions of the Uniform SMR Code format as

This Repair Parts and Special Tools List is divided

follows:

into the following sections:

(a) The maintenance code entered in the third

a. Section II. Repair Parts List. A list of spares

position will indicate the lowest maintenance level

and repair parts authorized for use in the per-

authorized to remove, replace, and use the support

formance of maintenance. The list also includes

item. The maintenance code entered in the third

parts which must be removed for replacement of the

position will indicate one of the following levels of

authorized parts. Parts lists are composed of func-

maintenance:

tional groups in numeric sequence, with the parts in

Code

Application/Explanation

each group listed in figure and item number se-

O-Support item is removed, replaced, used at the

quence.

organizational level.

b. Section III. Special Tools List. Not applicable.

c. Section IV. National Stock Number and Part

(b) The maintenance code entered in the four-

N u m b e r Index. A list, in National item iden-

th position indicates whether the item is to be

repaired and identifies the lowest maintenance level

tification number (NIIN) sequence, of all National

stock numbers (NSN) appearing in the listings,

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

followed by a list, in alphameric sequence, of all part

all authorized maintenance functions). This position

numbers appearing in the listings. National stock

will contain one of the following maintenance codes:

numbers and part numbers are cross-referenced to

Code

Application/Explanation

each illustration figure and item number ap-

OThe lowest maintenance level capable of com-

pearance.

p l e t e repair of the support item is the

organizational level.

3. Explanation of Columns

HThe lowest maintenance level capable of com-

a. Illustration. This column is divided as follows:

plete repair of the support item is the general

(1) Figure number. Indicates the figure number

support level.

of the illustration on which the item is shown.

ZNonreparable. No repair is authorized.

(2) Item Number. The number used to identify

(3) Recoverability Code. Recoverability codes

item called out in the illustration.

are assigned to support items to indicate the

b. Source, Maintenance, and Recoverability

disposition action on unserviceable items. The

(SMR) Codes.

recoverability code is entered in the fifth position of

(1) Source code. Source codes indicate the man-

the Uniform SMR Code format as follows:

ner of acquiring support items for maintenance,

repair, or overhaul of end items. Source codes are en-

Recoverability

codes

Definition

tered in the first and second positions of the

ZNonreparable item. When unserviceable, con-

Uniform SMR Code format as follows:

demn and dispose at the level indicated in

Code

Definition

position 3.

PAItem procured and stocked for anticipated or

OReparable item. When uneconomically

known usage.

reparable, condemn and dispose at

XDA support item that is not stocked. When

organizational level.

required, item will be procured through nor-

mal supply channels.