Хорошев / ИЛП_материал_маг_02.15 / Спецификация AECMA Specification 2000M / MIL-STD-1388-2B

MIL-STD-1388-2B

APPENDIX E

MEAN TIME BETWEEN PREVENTIVE MAINTENANCE MEASUREMENT BASE. An MB for the mean time between preventive maintenance.

MEAN TIME BETWEEN REMOVALS MEASUREMENT BASE. An MB for the mean time between removals.

OPERATING TIME MEASUREMENT BASE. An MB for the operating time.

TASK AOR MEASUREMENT BASE. An MB which corresponds to the AOR and is associated with the task frequency.

WEAROUT LIFE MEASUREMENT BASE. An MB for the wearout life.

A code which defines the preventive measures to forestall deterioration resulting from exposure to atmospheric conditions during storage and shipment. For applicable codes, see MIL-STD-2073-1 and MIL-STD-2073-2.

Identification of the military quantity distance class and storage compatibility groups for the item being transported. Reference AFR 71-4,

Preparing Hazardous Materials for Military Air Shipments, for instructions.

Identification of the military load classification number (for military bridges). The classification number empty is against the operational weight empty, DED 274. The classification number loaded is against the operational weight loaded, DED 274.

The specific types of military units that will use or transport the system/equipment.

A one-position code which indicates whether the end item can be dispatched on its assigned mission with the item under analysis inoperative.

- 471 -

MIL-STD-1388-2B

APPENDIX E

Narrative specifying any limitations on the end item when dispatched on its assigned mission with the analysis item inoperative.

A minimum replacement unit quantity indicating the minimum quantity of an item that is normally replaced/installed upon failure or scheduled replacement.

A one-position code developed by the performing activity that uniquely identifies a Mission Phase/Operational Mode, DED 240. Codes are A-Z, O-9 and *. The asterisk indicates that the information contained for a particular item is applicable to all mission phases.

A concise statement of the mission phase/operational mode in which the failure occurs. Where subphase, event, or time can be defined from the system definition and mission profiles, the most definitive timing information should also be described for the assumed time of failure occurrence.

A code which expresses the applicability of the SE to mobile facilities. The following codes may be used:

A code which indicates the system/equipment type of mobility.

The model type and number of the transporter.

- 472 -

MIL-STD-1388-2B

APPENDIX E

A single-letter code indicating whether the need for TMDE is a result of a modification or change to the end item.

A number assigned under the Federal Cataloging Program/North Atlantic Treaty Organization (NATO) codification of equipment system to each approved item identification which provides a unique identification of an item of supply within a specified Federal Supply Classification (FSC). The field consists of a three-character prefix, a 13-character National Stock Number (NSN) and a four-character suffix code as follows:

a.Prefix

NOTE: An alphanumeric NIIN is used to document management control or temporarily assigned numbers prior to final NSN assignment. Final NSNs are completely numeric.

ALTERNATE NATIONAL STOCK NUMBER FEDERAL SUPPLY CLASSIFICATION. The FSC of the NSN for an item which may be used in lieu of the SE under analysis.

ALTERNATE NSN NATIONAL ITEM IDENTIFICATION NUMBER. The NIIN portion of the NSN for an item which may be used in lieu of the SE under analysis.

CONTAINER NSN. A number which provides a unique identification to a reusable (long file) container within the appropriate FSC.

INTEROPERABLE ITEM NATIONAL ITEM IDENTIFICATION NUMBER. The NIIN of the interoperable equipment.

INTEROPERABLE ITEM NATIONAL STOCK NUMBER FEDERAL SUPPLY CLASSIFICATION. The FSC of the interoperable equipment.

- 473 -

MIL-STD-1388-2B

APPENDIX E

For applicable codes, see DOD 4100.38-M.

The PLISN assigned to the item’s next higher assembly. This may be the PLISN assigned to the item’s kit, or the PLISN assigned to a major component which is a planned overhaul candidate for which the item is required.

A code which indicates the type of data entered in NHA PLISN, DED 258.

- 474 -

The maximum force acceleration or deceleration, expressed in units of gravity (Gs) that can be applied to an item in its non-operating state without causing physical damage or change in its operational characteristics. The NOFF should only be completed for an item that has been determined, or assumed to have a non-operational fragility tolerance of less than 40 Gs.

The percent of estimated reparable generations which the intermediate repair shops will be unable to repair and therefore, will be processed to a technical repair center (depot).

The number of locations which will receive and operate the item under analysis.

The number of maintenance locations available to perform repair at each maintenance echelon.

The total number of skids of the system/equipment that is being transported.

The average number of systems or end items supported by a maintenance level.

A code that specifies whether the item is an interoperability item or a mode of transport item.

The projected annual ownership cost in dollars per end item of ATE/TMDE averaged over its expected useful life.

- 475 -

MIL-STD-1388-2B

APPENDIX E

Dimensions of an item of support/test equipment or training material while it is in the operational configuration mode. Composed of the

following subfields:

The operating time of the item under analysis per use/mission derived from the system definition.

The operating weight, in pounds, of the item under analysis.

The number of days worth of stock intended to sustain normal operations during the interval between receipt of replenishment shipment and submission of subsequent replenishment requisition. Does not include either safety level or order ship time quantities.

The number of years the item is expected to be in service.

- 476 -

MIL-STD-1388-2B

APPENDIX E

A narrative description of the guidelines to be followed to identify operational mission failures for the system/equipment being documented. Operational mission failures are those failures which, upon occurrence, would prevent the system/equipment from performing mission essential functions. Mission essential functions are the minimum operational tasks which the system must be capable of performing to complete its mission successfully.

A code indicating whether the operational requirement specified pertains to a wartime or peacetime scenario.

The operational weight in tons of the system/equipment being transported. It is divided into two subfields:

Codes that are assigned to indicate the maintenance levels authorized to perform the required maintenance function.

Operator/Crew/Unit-Crew. Operations and maintenance which are the responsibility of and performed by the using organization by the system equipment operator/crew on its assigned equipment. Its phases normally consist of inspecting, servicing, lubricating, adjusting, and replacing of parts, minor assemblies, and subassemblies.

Organizational/On Equipment/Unit-Organizational. Maintenance which is the responsibility of and performed by the using organization on its assigned equipment. Its phases normally consist of inspecting, servicing, lubricating, adjusting and replacing of parts, minor assemblies and subassemblies.

Intermediate/Direct Support/Afloat/Third Echelon/Off Equipment/ Intermediate-Forward. The next higher maintenance level after Organizational/On Equipment/Unit-Organization. Titles of “Direct Sup port” and “Third Echelon” are associated with ground support forces;

- 477 -

MIL-STD-1388-2B

APPENDIX E

“Intermediate” and “Off Equipment” are with nautical and aviation organizations. Maintenance at this level is the responsibility of, and

performed by, designated maintenance activities for direct support of using organizations. Its phases normally consist of: calibration,

repair or replacement of damaged or unserviceable parts, components or assemblies; emergency manufacture of nonavailable parts; and technical assistance to using organizations.

Intermediate/General Support/Ashore/Fourth Echelon/Intermediate-Rear.

Maintenance performed on material requiring major overhaul or a complete rebuild of parts, subassemblies and end items, including manufacture of parts, modification, testing and reclamation as required. Includes capabilities described in Intermediate/Direct Support/Afloat/Third Echelon/Off Equipment/Intermediate-Forward.

Intermediate/Ashore and Afloat. A maintenance level used to identify those maintenance tasks which can be accomplished at the intermediate level both Ashore and Afloat.

tenance serves to support lower categories of maintenance by providing technical assistance and performing whatever maintenance is beyond their responsibility. Depot maintenance provides stocks of serviceable equipment by using more extensive facilities for repair than are available in lower level maintenance activities.

Depot/Shipyards D

Specialized Repair Activity (SRA). A level of maintenance usually characterized by the capability to perform maintenance functions requir ing specialized skills, disciplined quality control, highly sophisticated and expensive special tools, and TMDE. Its phases normally consist of adjustments, calibration, alignment, testing, troubleshooting, assembly, disassembly, fault isolation, and repair of unserviceable parts, modules, and printed circuit boards (PCB).

MODELING OPERATIONS AND MAINTENANCE LEVEL. The O/M level associated with supportability modeling information.

OPERATIONS AND MAINTENANCE LEVEL FROM. The O/M level from which a spare/ repair part is shipped.

- 478 -

MIL-STD-1388-2B

APPENDIX E

OPERATIONS AND MAINTENANCE LEVEL TO. The O/M level where a spare/repair part is received.

PRINTED CIRCUIT BOARD REPAIR OPERATIONS/MAINTENANCE LEVEL. The O/M level at which PCBS of the SE under analysis are repaired.

SUPPORT EQUIPMENT CALIBRATION OPERATIONS/MAINTENANCE LEVEL. The O/M level at which the SE under analysis is calibrated.

SUPPORT EQUIPMENT REPAIR OPERATIONS/MAINTENANCE LEVEL. The O/M level at which the SE under analysis is repaired.

The Technical manual/technical order designation of the military operators manual, or the number of the commercial manual applicable to the item.

A code which indicates whether various types of optional packaging procedures are allowable or whether no deviations from the packaging data are permitted. For applicable codes, see MIL-STD-2073-1 and MIL-STD-2073-2.

Data documenting the operations and organizational maintenance requirements for the system/equipment under development. It consists of the following subfields.

An inspection for latent defects to a greater depth than the Preoperative/Preflight/PostflightInspection. It includes the elements of the Preoperative/Preflight/Postflight Inspection and satisfies the requirement for Preoperative/Preflight/Postflight Inspection if it is conducted against the same hardware item. Daily inspections are performed before the first operation/flight of the day or after the

last flight of the day.

This field is composed of two subfields:

The process of changing the operational configuration of the end item in order to accomplish a different mission. Consists of the following subfields:

- 479 -

An inspection with a regular or recurring interval other than daily, preoperational, post-operational or calendar. Consists of the following subfields:

An inspection conducted immediately after each operation to determine defects that may have developed during the operation. Consists of the following subfields:

An inspection conducted before each operation to verify that the equipment has been properly serviced and to detect defects that would have an adverse affect on the operation. Consists of the following subfields:

The time required to return item for use between missions. Consists of the following subfields:

A rate that represents an estimate of the percent of time that a particular support item will be replaced in the next higher repairable assembly/end item during overhaul.

- 480 -