INTRODUCTION - TM-11-5915-224-24P0004

TM 11-5915-224-24P

SECTION I

INTRODUCTION

1. Scope

replacement of the next higher assembly.

XD-A support item that is not stocked. When re-

This manual lists repair parts and special tools re-

quired, item will be procured through normal

quired for performance of organizational, direct sup-

supply channels.

port, and general support maintenance of the

NOTE

MX-7778A/GRC.

Cannibalization or salvage maybe used as a

2. General

source of supply for any items source coded

This Repair Parts and Special Tools List is divided into

above except those coded XA, XD, and

the following sections:

aircraft support items as restricted by AR

a. Section II. Repair Parts List. A list of repair parts

700-42.

authorized for use in the performance of maintenance.

(2) Maintenance code. Maintenance codes are

The list also includes parts which must be removed for

assigned to indicate the levels of maintenance

replacement of the authorized parts. Parts lists are

authorized to USE and REPAIR support items. The

composed of functional groups in ascending numerical

maintenance codes are entered in the third and fourth

sequence, with the parts in each group listed in figure

positions of the Uniform SMR Code format as follows:

and item number sequence.

(a) The maintenance code entered in the third

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

position will indicate the lowest maintenance level

c. Section IV. National Stock Number and Part

authorized to remove, replace, and use the support

Number Index. A list, in ascending National item iden-

item. The maintenance code entered in the third posi-

tification number (NIIN, last 9 digits) sequence, of all

tion will indicate one of the following levels of mainte-

National stock numbers appearing in the listings,

nance:

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

numbers appearing in the listings. National stock num-

Application/Explanation

Code

ber and part numbers are cross-referenced to each il-

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

lustration figure and item number appearance.

organizational level.

3. Explanation of Columns

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

The following provides an explanation of columns

general support level.

found in the tabular listings:

(b) The maintenance code entered in the fourth

a. Illustration. This column is divided as follows:

position indicates whether the item is to be repaired

(1) Figure number. Indicates the figure number of

and identifies the lowest maintenance level with the

the illustration in which the item is shown.

capability to perform complete repair (i.e., all

(2) Item number. The number used to identify each

authorized maintenance functions). This position will

item called out in the illustration.

contain one of the following maintenance codes:

b. Source, Maintenance, and Recoverability Codes

Application/Explanation

Code

(SMR).

H-The lowest maintenance level capable of complete

(1) Source code. Source codes are assigned to sup-

repair of the support item is the general support

port items to indicate the manner of acquiring support

level.

items for maintenance, repair, or overhaul of end

Z-Nonreparable. No repair is authorized.

items. Source codes are entered in the first and second

(3) Recoverability code. Recoverability codes are

positions of the Uniform SMR Code format as follows:

assigned to support items to indicate the disposition ac-

tion on unserviceable items. The recoverability code is

Code

Definition

entered in the fifth position of the Uniform SMR Code

PA-Item procured and stocked for anticipated or

format as follows:

known usage.

Recoverability

PD-Support item, excluding support equipment, pro-

Definition

codes

cured for initial issue or outfitting and stocked

Z-Nonreparable item. When unserviceable, condemn

only for subsequent or additional initial issues

and dispose at the level indicated in position 3.

or outfittings. Not subject to automatic

H-Reparable item. When uneconomically reparable,

replenishment.

condemn and dispose at the general support

MD-Item to be manufactured or fabricated at the

level.

depot maintenance level.

c. National Stock Number. Indicates the National

XA-Item is not procured or stocked because the re-

stock number assigned to the item and will be used for

quirements for the item will result in the

requisitioning purposes.