Хорошев / ИЛП_материал_маг_02.15 / DEF STAN 00-60 / Issue 4 / Part 0 - Appendix F to Annex C - Data element dictionary

DEF STAN 00-60 (PART 0)/4

APPENDIX F TO ANNEX C

Narrative clarification of data pertaining to failure modes.

Information on known incipient failure indicators (eg, operational performance variations), which are peculiar to the item failure trends and permit predicting failures in advance.

A single-position code identifying the qualitative level assigned to the failure probability of occurrence. The levels are as follows:

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item operating time interval. Extremely unlikely may be defined as a single failure mode probability of occurrence, which is less than 0.00l of the overall probability of failure during the item operating time.

For a particular interval, the total number of failures within a population of an item divided by the total functional life of the population during the measurement interval. The definition holds for time, rounds, Kilometres, events, cycles, or other measures of life units.

The source of the failure rates used in the calculation of criticality numbers. Failure rate data can be obtained from sources such as appropriate reliability predictions, test and evaluation results, field data from past systems of similar design and environmental use, or failure rate data sources such as MIL-HDBK-217F.

The credibility of the available reliability information shall be established, the criteria of data to be utilized are listed in order of preference.

a. Field service data from identical equipments operating under the same environmental conditions.

Field service data identical.

b. Test data from identical equipments operating under simulated representative environmental conditions.

Test data identical.

c. Field service data from similar equipments operating under the same environmental conditions.

Field service data similar.

d. Test data from similar equipments operating under simulated representative environmental conditions.

Test data similar.

e. Component parts stress prediction in accordance with MIL-HDBK-217F or other component database approved by the Project.

Approved component data base.

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Once the type of data has been established it can be assessed with respect to which stage of development it originate. For example; test data from the reliability growth programme will not be as valid as test data from production reliability in other words, the most recent programme data has most credibility.

The abbreviated noun name which describes the support/test equipment by functional category (see AECMA 1000D).

Fault Isolation is a procedure employed to determine which particular unit or group of units is at fault for a malfunction or failure. Specific information related to the BIT capability to fault isolate is provided in the sub-fields of this block.

A set of items at the same level of indenture having properties such that BIT can determine that at least one of the set is faulty, but is unable to determine which particular one.

The percent of an item's probable malfunctions, which can be isolated within a specific ambiguity group by means of BIT.

A number assigned to identify a specific illustration contained in a manual. This is a constituent part of AECMA 2000M TEI CSN, limited to three characters that equate to fields 7, 8 and 9 of AECMA 2000M TEI CSN.

The period beginning 1 April of one calendar year and ending on 31 March on the following calendar year. For example, the fiscal year 1992 relates to 1992/1993.

TRANSPORTED FISCAL YEAR. The fiscal year for which transportation is required.

UI PRICE FISCAL YEAR. The fiscal year the UI price was developed.

UM PRICE FISCAL YEAR. The fiscal year the UM price was developed.

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The recommended freight classification of the item corresponding to the particular mode of transportation that will be used to transport the item.

A statement shall give, in technical and quantitative terms, a precise description of the function requiring support, including, the specific operating critical and fundamental performance characteristics, corresponding tolerance or accuracy, and design criteria necessary. Also describe the required interval for performance of the function; required input and output characteristics and measurements; and, environmental conditions under which the piece of SE is to be used.

Identifies the support/test equipment by functional group. (ie Oscilloscope, multimeter) (see AECMA 1000D).

Entry specifying whether or not the corresponding requirements are imposed by the government. Enter a ‘Y’ for yes, ‘N’ for no.

A code which identifies an item at any assembly level which is mission critical and could be designed, repaired, manufactured, installed or maintained for normal operation and yet degrade system survivability in a nuclear, biological, or chemical hostile environment, if hardness were not considered.

A single-position code indicating whether or not the particular maintenance task under analysis has a bearing on an item which is mission critical. Nuclear HCPs are procedures, finishes, specifications, manufacturing techniques/procedures which are hardness critical and, if changed, could degrade nuclear hardness. Code ‘S’ should be used if unsure whether or not a task is hardness critical at that point in time.

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The estimated cost used with an associated Currency Code (DED 629), of hardware development of the support equipment. This price does not include the cost of deliverable hardware.

A code which indicates that the item is considered to be hazardous goods by either being listed in one of the International or UK Transport of Dangerous Goods Regulations, or would meet the criteria listed in them.

Air Systems: SOFT CONSUMABLES DANGEROUS ENGINEERING

SUBSTANCES

Where a product is, or should be, classified as a Dangerous Engineering Substance (DES) (AP 100B-10 refers) enter ‘D’, otherwise ‘N’. If a Data Sheet for the product is not included in AP 100B-10 or JSP(F)395 the compiler is to advise the Multi Disciplinary Group (MDG) and Dangerous Engineering Substances Advisory Team (DESAT), in writing, that GAI 5011 action may apply.

A code which denotes whether the performance of the maintenance action identified by the task code will potentially expose assigned maintenance personnel to hazardous conditions.

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The projected annual cost, used with an associated Currency Code (DED 629), to store hazardous material required for one end item. This figure reflects an annual storage cost averaged over an item's expected useful life.

The projected annual cost, used with an associated Currency Code (DED 629), to dispose of the hazardous waste generated due to operating/supporting one end item. This figure reflects annual disposal costs averaged over an item's expected useful life.

The projected annual costs, used with an associated Currency Code (DED 629), to store hazardous waste generated due to operating/supporting one end item. This figure reflects an annual storage cost averaged over an item's expected useful life.

Helicopter mission transportation requirements is divided into five sub-fields indicating the worst (eg, highest, coldest, longest, and heaviest) mission scenario.

The indenture level shall correspond to the indenture that the item will be given within the Illustrated Parts Catalogue.

CODE: Enter number of indenture level = 1 to 9

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FIGURE INDENTURE CODE. An indenture level corresponding to the indenture that the item will be given within a figure. This equates to AECMA 2000M TEI IND, which should be referred to for full explanation.

The probability that, when used under stated conditions in an ideal support environment without consideration for preventive action, a system will operate satisfactorily at any time. The ‘ideal support environment’ referred to, exists when the stipulated tools, parts, skilled manpower, manuals, SE and other support items required are available. Ai excludes whatever ready time, preventive maintenance downtime, supply downtime, and administrative downtime may require. Ai may be expressed by the following formula:

NOTE: The measurement bases for MTBF and MTTR shall be consistent when calculating Ai.

REQUIRED INHERENT AVAILABILITY. An Ai representing the requirement/specification Ai.

A factor derived from historical information, that identifies the percent of No Defect maintenance actions that have been included in the MTBM Inherent parameter. This factor is used to relate the MTBM Inherent parameter to the MTBF parameter. The IMF may be calculated using the following formula:

IMF = (MTBF − MTBM INHERENT) X100

MTBF

where:

MTBF = Mean Time Between Failures, DED 229

MTBM Inherent = Mean Time Between Maintenance Inherent, DED 232

The initial cost, used with an associated Currency Code (DED 629), of entering an item into the retail supply system. This includes the administrative cost of setting up a bin for the item at the wholesale supply point.

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The initial cost, used with an associated Currency Code (DED 629), of entering a new item into the wholesale supply system. This is generally considered to be the cost of screening the item and assigning an NSN.

The operating power requirements necessary for the TMDE to function and operate properly. Consists of the following sub-fields.

The voltage range which the TMDE requires to function properly. Sub-fields are:

The minimum voltage which the TMDE requires to function properly.

The maximum voltage which the TMDE requires to function properly.

A code indicating the type of voltage required to operate the Automatic Test Equipment/Test Measurement and Diagnostic Equipment, support/test equipment.

The number of periods or cycles, in hertz, for a given voltage or voltage range. Consists of following sub-fields:

The minimum frequency which the TMDE requires to function properly.

The maximum frequency which the TMDE requires to function properly.

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The number of simultaneously applied AC voltage sources for a given voltage range.

The unit of power equivalent to the current of one ampere flowing across a potential difference of one volt.

The percent maximum ripple allowable of the output voltage of the power source available to operate the TMDE.

A number sequentially assigned from 1 to 99 that is used to distinguish between different sets of values of input power requirements for a specific piece of support equipment.

A narrative description identifying any considerations required for the installation of support and test equipment, or training material, such as vibration and shock mounting requirements, special foundations, utilities connections, and environmental factors. Also, includes any equipment necessary to install the item, eg, cranes, hoists, lift trucks, transits etc. When new or modified facilities are required to house the support, test equipment, or training materials, facilities data table(s) may also be required.

Sea Systems: This narrative should address the requirements for:

a.Onboard Servicing.

b.Manufacturing Gauges, Tools etc.

c.Installation, Setting to Work.

The total cost, used with an associated Currency Code (DED 629), allied with ILS deliverable recommendations made by the contractor.

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a.Signifies one-way (OW) interchangeability as follows:

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