MIL-STD-1388-2B
APPENDIX E
APPENDIX E - SECTION 3
DATA ELEMENT DEFINITIONS
001 ACHIEVED AVAILABILITY (Aa) |
8 N R 6 |
The probability that, when used under stated conditions in an ideal support environment, a system will operate satisfactorily at any time. This differs from Inherent Availability only in its inclusion of consideration for preventive action. Aa excludes supply downtime and administrative downtime. The measurement bases for MTBM and M must be consistent when calculating Aa.
Aa may be expressed by the following formula:
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MTBM |
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Aa = |
MTBM + M |
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where MTBM = ( 1 |
1 |
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1 ) - 1 |
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MTBF |
+ |
MTBM-ND |
+ |
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MTBPM |
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N |
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E |
(ETi) (TFi) |
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i=l |
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M = |
N |
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E |
TFi |
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i=l |
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M |
= Mean active maintenance downtime (where corrective and preventive |
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actions are considered) |
ETi = |
Elapsed time for task i |
TFi = |
Task frequency for task i |
N |
= Total number of tasks performed |
Note: The measurement bases for MTBF, MTBM-ND, and MTBPM must be consistent when calculating the MTBM parameter.
REQUIRED ACHIEVED AVAILABILITY. An Aa representing the requirement/ specification Aa.
002 ACQUISITION DECISION OFFICE |
1 5 X L - |
Identifies the activity name and code or office symbol responsible for technical and acquisition management decisions.
003 ACQUISITION METHOD CODE (AMC) |
1 N F - |
A code assigned by Department of Defense (DOD) activities to describe the results of screening reviews of parts, defining either a single source or
or the environment in which the
MIL-STD-1388-2B
APPENDIX E
competitive procurement direction for the item. For codes and explanations refer to DOD 4100.38-M.
004 ACQUISITION METHOD SUFFIX CODE |
1 X F - |
(AMSC) |
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A code assigned by DOD activities to provide a further description of the acquisition method code by adding information concerning the status of a part in areas such as engineering, manufacturing, and technical data.
For codes and explanations, refer to DOD 4100.38-M.
005 ADAPTER/INTERCONNECTION DEVICE |
1 A F - |
REQUIRED |
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A single position code indicating whether an adapter interconnection device is required to provide mechanical and electrical connection between the Automatic Test Equipment (ATE)/Test, Measurement, and Diagnostic Equipment and a unit under test.
Required |
Y |
Not Required |
N |
006 ADDITIONAL REFERENCE NUMBER (ARN) |
3 2 X L - |
A drawing or interchangeable reference number related to the reference number of the item under analysis. Only those ARNs that are known and available as a result of the contractor’s design and production experience should be provided. This requirement is not intended to burden the contractor with the additional work load of searching for ARNs. When more than one manufacturer’s reference number identifies a single design item, the additional reference number(s) which have been validated by the contractor as completely interchangeable for the specific application and whose use will not invalidate the end item warranty shall be furnished.
007 ADDITIONAL SKILL REQUIREMENT: SKILL |
6 5 X - - |
REQUIRING A NEW OR REVISED SKILL CODE |
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A narrative description identifying the new skills that are required in order to operate/maintain the equipment.
008 ADDITIONAL SKILLS AND SPECIAL |
6 5 X - - |
TRAINING REQUIREMENTS |
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A narrative description identifying the new skills required to operate/ maintain the equipment, and the additional training required for operator, maintenance, and instructor personnel. Includes the estimated lengths of courses, recommended site, justification for training, and prerequisite requirements for students.
009 ADDITIONAL SPECIFICATIONS/REQUIREMENTS |
6 5 X - - |
A narrative description of any specifications or requirements (related to the anticipated operation of the system,
MIL-STD-1388-2B
APPENDIX E
system will be operated and maintained) that cannot be documented under the detailed specification/requirements data.
010 ADDITIONAL SUPPORTABILITY CONSIDERATIONS |
6 5 X - - |
A narrative description of LSA modeling considerations which cannot be documented in the discrete supportability data elements. It may include such information as acceptable models, program or model specific information, etc.
011 ADDITIONAL SUPPORTABILITY PARAMETERS |
6 5 X - - |
A narrative including a listing and description of specific data elements for which discrete fields are not provided. The documentation should also include the data element title, associated value to be recorded, associated units, and a description as necessary to define the scope and purpose of the data element and its use.
012 ADDITIONAL TRAINING REQUIREMENTS |
6 5 X - - |
A narrative description identifying the additional training required for operator, maintenance , and instructor personnel. Includes the estimated length of courses, recommended site, justification for training and prerequisite requirements for students.
013 ADMINISTRATIVE AND LOGISTIC |
3 N R - |
DELAY TIME (ALDT) |
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The total time in days the system/equipment is inoperable due to delays in maintenance that are attributable to administration and logistics.
REQUIRED ALDT. An ALDT representing the requirement\specification ALDT.
014 ADMINISTRATIVE LEAD TIME |
2 N R - |
The administrative time (in days) required to prepare, advertise and award a contract for wholesale supply reorder actions.
015 ALLOCATION DATA |
6 0 X - - |
The support equipment allocation information consisting of seven subfields:
a. |
Allowance (DED 016) |
1 0 X L - |
b. |
Station Identification Code |
5 X L - |
An alpha-numeric code to identify a specific automatic test equipment station or location with the associated allowance list. The code is provided by the requiring authority.
c. Maintenance Level Function |
2 X L - |
MIL-STD-1388-2B
APPENDIX E
A two-character code specifying the level of maintenance at which a particular task employing the support equipment will be accomplished. Codes are as follows:
NAVY |
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Organizational level |
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o |
Organizational and intermediate land and vessel |
01 |
Intermediate |
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I |
Intermediate weapon station |
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IW |
Depot level |
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D |
Three degrees of intermediate propulsion |
11, 12 or 13 |
system |
maintenance |
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Transient/bingo |
sites |
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T |
ARMY, AIR FORCE, AND FEDERAL AVIATION ADMINISTRATION |
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Organizational |
level |
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o |
Intermediate |
level, |
on |
equipment |
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F |
Intermediate |
level, |
off |
equipment |
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H |
Depot level |
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D |
d. Land |
Vessel |
Code |
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1 A F - |
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A code (primarily used by the Navy) to restrict and control the selection of support equipment end items required for different environmental conditions. Codes are as follows:
e. |
Allowance |
Range |
30 N AS - |
A 10 block spread format (Allowance Range 1-10 used to record the |
allowance for the end item, ATE item, |
or depot overhaul requirements). |
The Allowance Code |
(DED 016) will distinguish whether the allowance |
ranges |
are for end |
items, ATE items, |
or depot overhaul requirements. |
These 10 blocks may be labeled 1-4 through 251-450 to describe the number of end articles to be supported by the quantity of support equipment end items entered in the three (3) position subfield. Block headings are:
1-4, 5-8, 9-12, 13-16, 17-24, 25-32, 33-64, 65-125, 126-250 and 251-450, respectively. For example: For SE end items, the quantity of end items required to support a range of 5 to 8 end articles is identified in the block labeled 5-8.
(1)For ATE items, the 10 blocks are associated with 1, 2, 3. . .10 to describe the number of ATE items to be supported by the quantity of support equipment items entered in the three position subfield.
(2)For depot overhaul requirements/entries, associate the first three blocks with workload rates of 20, 50, 100 end articles per month to be supported by the quantity of support equipment items entered in the three-position subfield.
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MIL-STD-1388-2B
APPENDIX E
f. Extended Range |
3 X R - |
A field designating the quantity of SE items required to support quantities of end articles exceeding 450.
g. Designation Description |
9 X F - |
A nine-position code that identifies the method of allowancing items. The codes include the following:
Inventory Record |
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INVRECORD |
No longer applies for this list code |
NOTAPPLIC |
Per crash crew |
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PERCRACRW |
Where 99 represents quantity of end articles and |
PER99XXXX |
XXXX represents specific entities, e.g. , PER02ACFT |
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indicates an allowance based on supporting two |
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aircraft. Entries for XXXX include: |
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Aircraft |
ACFT |
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Missile |
MISL |
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Engine |
ENGN |
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Metrology Labs |
LABS |
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Targets |
TRGT |
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016 ALLOWANCE |
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1 0 X L - |
Allowance identifies the Army Table of Organization and Equipment |
(TO&E), the Navy List Code, |
or the Air Force Table of Authorization that |
will be the allowance source document for the article requiring support. |
017 ALLOWANCE ITEM CODE (AIC) |
2 X F - |
Consists |
of two subfields: |
Allowance Type and Allowance Code. |
a. |
Allowance Type |
1 A F - |
A code which indicates the type of item.
Basic issue item category code (Army)
Allowance note code (Navy)
Technical override (TOR) code (Navy)
Allowance factor code (Air Force)
Stockage list category (Marine Corps)
b. Allowance Code |
1 X F - |
A code which further defines and categorizes the allowance type.
(1) When an Allowance Type code of “A” is specified, one of the following codes must be used for Allowance Code.
MIL-STD-1388-2B
APPENDIX E
Basic issue item |
A |
Component of end item |
C |
Expendable/durable supplies and materials |
D |
Additional authorization list items (modified |
E |
table of organization and equipment) |
F |
Additional authorization list items (other) |
(2) When an Allowance Type code of “B” is specified, one of the following codes must be used for Allowance Code.
Indicates an operating space item regardless of vessel type. 1 The Stock Number Sequence List (SNSL) reflects a quantity for each application.
REFER TO YOUR ALLOWANCE PARTS LIST (APL) to determine if the 2 Repair Part is required (since exceptions are annotated on
the APL when the repair part may not be required) or where a choice must be made to select the correct repair part.
Represents the superseding repair part due to redesign or |
3 |
material change. The superseded stock number appears as |
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alternate information in part III, section D, of the |
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Coordinated Shipboard/Allowance List (COSAL). The |
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superseded item, presently on board, can be used without |
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adverse effect to the component, if the superseded item |
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is presently on board, utilize the stock under the |
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superseded number before ordering deficiencies. |
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An item with an NSN for bulk material that is to be used |
4 |
in the fabrication of the item listed in the parts list. |
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Requisition as required. |
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Denotes CLASSIFIED PART and should be requisitioned |
5 |
and stored IAW current security regulations. |
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An RSS (Ready Service Spare) which will appear in the |
6 |
COSAL section III CR of the SNSL. This item may also |
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appear in section IIIA of the SNSL as a storeroom item |
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for this APL application if anticipated usage warrants |
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backup support. |
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Denotes an item that is to be requisitioned and stowed |
7 |
IAW confidential instructions. This note applies to |
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operating frequency control crystals allowance. |
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Indicates |
an accessory component/components applicable to |
8 |
a parent |
equipment. |
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Item(s)/part(s) for which only the Commanding Officer |
9 |
or his designated representative is specifically responsible |
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for the physical custody and safekeeping thereof. |
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Represents an item that has been coded to deviate from |
A |
the NORMAL MAINTENANCE POLICY expressed by the Lead APL. |
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MIL-STD-1388-2B
APPENDIX E
The responsible hardware command authorizing this deviation will be annotated in the characteristic portion of the APLs.
Indicates that the ORDNANCE alternation has been performed |
C |
and repair parts are not required. |
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Applicable to S/0/S (SHIPALT/ORDALT/SPALT) items, indicates |
D |
the quantity by which the effected APL population of the item |
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has been decreased after accomplishment of the S/0/S. |
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Indicates that a Technical Override (TOR) or Planned Maint- |
E |
enance Requirement (PMR) is included in the allowed quantity. |
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Indicates that note codes 3 and E, above, apply to the item. |
F |
Indicates that note codes 2 and E, above, apply to the item. G
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Represents an item listed on Allowance Equipage Lists |
H |
(AELs) to provide technical information only |
and |
is not |
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an |
authorized |
allowance. |
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Indicates that Note Code 1 or X and Note Code 2 both |
J |
apply to |
the |
item. |
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Represents a module required to execute an approved mainte- |
N |
nance plan which calls for identifying the fault or failed |
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module through progressive/selective module substitution. |
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Maintenance Assistance Modules (MM) will be |
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included as an Operating Space Item (0SI) in the COSAL, |
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section III CF of the Stock Number Sequence List (SNSL). |
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The item may also appear in section IIIA of the SNSL as a |
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storeroom item for this APL application if anticipated usage |
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warrants |
backup |
support. |
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Represents the preferred item in a situation where two or |
S |
more items are interchangeable. The alternate nonpreferred |
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item(s), if presently on board, may be utilized to satisfy |
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the allowance requirement; however, when a shortage exists |
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the preferred item of stock should be requisitioned. The |
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alternate item of stock will appear in the Preferred-to- |
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Alternate Substitute Cross-Reference List. |
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Select at |
test. |
All NSNs required for the selection are |
T |
listed for each circuit symbol. Item needed must be |
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selected from among the listed NSNs based on equipment |
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operating |
requirements. |
A suffix has been assigned to |
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the circuit symbol for identification. |
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Variable. |
See the characteristics portion of APL. |
V |
APL |
will |
state: |
NSN . . has been cancelled -- |
it |
cannot |
W |
be |
procured. |
When part |
fails, replace with |
the |
next higher |
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assembly.
MIL-STD-1388-2B
APPENDIX E
Indicates an operating space item. |
The |
SNSL quantity is |
X |
established by the highest single application quantity in all |
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of |
the items X code applications. |
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On |
Board Repair Part (OBRP) Kits. |
OBRP |
quantities are |
Z |
included in the APPL (Application) column of section B and the QTY in one equip/comp columns of section A. These kits should be retained as OBRP even if not listed in the COSAL SNSL/Integrated Stock List (ISL).
(3) When an Allowance Type code of “C” is specified,
one of the following codes must be used for Allowance Code. |
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Operational Availability Override Requirement. |
A |
Indicates that the Allowance Override |
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quantity (C007A) finite quantities determine the |
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allowance quantity for the Operational Availability |
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computational math model. For a given item, a |
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comparison between the single highest “A” quantity, |
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other overrides, the sum of all PMR, and the computed |
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demand-based |
quantity, is |
made |
and the |
highest single |
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quantity is selected as the authorized allowance. |
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Critical Candidate. |
Identifies items to be stored |
C |
as higher supply echelons (see Note 1 below). |
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Disapproved |
Technical |
Override. |
TOR reviewed and |
D |
disapproved by the cognizant Hardware Systems |
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Command for .25 Fleet Logistic Support Improvement |
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Program (FLSIP) computations, under .15 computation item |
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allowance determined by the C007A finite quantities |
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(see Note 2 below). |
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Early Supply Support |
(ESS). Indicates |
that the |
E |
finite quantity in COO7A is used in place of the |
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quantity per allocation for allowance computation. |
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Approved TOR |
Mission |
Override. |
TOR accepted to |
M |
support primary mission. The C007A finite quantity |
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determines the allowance for a particular item. |
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Planned Maintenance Requirement (PMR). Indicates |
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that the C007A finite quantities for an item are |
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additive across all applications, and the summarized |
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PMR quantity determines the authorized allowance |
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when compared with other overrides and the computed |
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demand-based |
allowance. |
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Requisition |
as Required. |
Indicates that “AR” |
R |
is printed in the quantity field for an item. |
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Programs disregard quantities in CO07A. |
II R !1 |
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overrides all other populations |
for an |
item. |
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MIL-STD-1388-2B
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APPENDIX E |
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Safety Equipment. |
Specified C007A |
quantity |
is |
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S |
justified allowance to ensure safety and preserve life. |
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Technical Override. |
Indicates |
that |
the highest |
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T |
finite C007A quantity for a given item is compared |
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with the summarized PMR quantity, other override |
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quantities, and the demand-based computed quantity, |
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the highest of these quantities becomes the |
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authorized |
allowance, Applies |
to .15 FLSIP |
only. |
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Disapproved |
TOR. Justification |
reserved for |
future |
V |
use. |
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Operational |
Availability |
Underride. |
Indicates |
that |
Y |
the item population for this application is |
not |
used |
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to determine allowance quantities. No finite quantity |
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is loaded in C007A (used to exclude items from the |
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Operational |
Availability |
model), |
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Zero Override. Indicates that the item population for this application is not used to determine allowance quantities. No finite quantity is loaded in C007A. Used to exclude items from FLSIP model.
NOTE:
1.An informational code designed to assist in the future selection
of items to be stocked at higher echelons. Instructions for the use of this code will be provided by the requiring authority. C-coded items will be processed in the same manner as D-coded items.
2. D-coded items will still be considered as valid candidates for onboard stocking and can be included on allowances if other support criteria is met.
(4)When an Allowance Type code of “D” is specified, the requiring authority will specify the code to be used for Allowance Code.
(5)When an Allowance Type code of “E” is specified, one of the following codes must be used for Allowance Code:
Principal |
end |
item |
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Using |
unit |
responsible item |
Supply |
system |
responsible |
item |
Collateral |
Equipment |
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018 ALLOWANCE ITEM |
QUANTITY |
3 N R - |
A quantity which is defined by the Allowance Item Code.
019 ALTERNATE LOGISTIC SUPPORT ANALYSIS |
2 N F - |
CONTROL NUMBER CODE (ALC) |
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