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MIL-STD-1388-2B

APPENDIX E

A decimal value which expresses the cost factor for supporting SE. This factor is derived from the ratio of the yearly SE costs to the SE unit costs .

A code to indicate the item is to be provisioned separately by either a separate PCCN, or under a different time schedule than the overall provisioning.

A code that signifies whether the LCN represents a system, end item, or not a system/end item. A system or end item is an item capable of in dependent operation, or is a class or group of equipments that is managed and provisioned under a separate Provisioning Contract Control Number.

PROVISIONING SYSTEM/END ITEM IDENTIFIER. An identifier for the system/end item being provisioned.

A code that indicates the system/end item narrative.

A one-position code indicating whether the information is related to system redesign or logistics considerations narrative. Codes are as follows:

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DISPOSITION, RESULTS

A narrative of either system or reliability centered maintenance (RCM) redesign considerations.

System Redesign. A narrative description identifying recommended design changes, disposition of each recommendation, and the results of each recommendation for which analysis indicates a redesign might be warranted. Shall include appropriate feasibility and cost benefit analysis results performed to validate the redesign recommendations.

RCM Redesign. A narrative description identifying recommended design changes, that come from the RCM analysis, the disposition of each recommendation and results of each recommendation for which analysis indicates a redesign might be warranted. Shall include appropriate feasibility and cost benefit analysis results performed to validate the redesign recommendations.

A data chain of six separate data subfields which uniquely identify each operator/maintenance task associated with particular items under analysis. The first five subfields provide information relative to the performance of the task itself. The sixth subfield is a task sequence code provided to differentiate tasks with identical entries in the first five subfields. The individual subfields that comprise the task code are described as follows:

A code that denotes specific maintenance, operator, or supporting functions necessary to the operation and maintenance of an item.

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MIL-STD-1388-2B

APPENDIX E

Access. To perform operations necessary to gain access to an item of the next lower level of indenture or an item blocking accessibility to the item under analysis.

Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or exact position, or by setting the operating characteristics to specified parameters.

Align. To adjust specified variable elements of an item to bring about optimum or desired performance.

Calibrate (CAL). To determine accuracy, deviation or variation by special measurement or by comparison with a standard.

Clean. To rid of dirt, impurities or extraneous matter from the item.

Debug. To detect and remedy an inadequacy in software.

Dispose. To get rid of including those actions to prepare an item for disposal, e.g., demilitarization.

End of Runway Inspection. The inspection which is a visual/operational check of designated systems and components performed at end of runway.

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MIL-STD-1388-2B

APPENDIX E

Fault Location (FAULT LOCAT). The process of investigating and detecting the cause of equipment malfunctioning; the act of isolating a fault within a system or Unit Under Test.

Inspect. To determine the serviceability or detect incipient failures by comparing an item’s physical, mechanical, and/or electrical characteristics with established standards through examination (e.g., by sight, sound, or feel).

Install. To perform operations necessary to properly fit a spare part into the next higher assembly.

Load/Unload. To place or insert in or take out of, a device or piece of equipment; to place or remove or components on an airplane or other vehicle.

Mission Profile Change. The function performed to enable the end item to perform a different type mission.

Monitor. To attend to displays continually or periodically to determine equipment condition or operating status.

Operate. To control equipment in order to accomplish a specific purpose.

an item to completely serviceable/operational condition as required by maintenance standards in appropriate technical publications. Overhaul is normally the highest degree of maintenance performed.

for storage and transportation. Also includes the action required to unpack.

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MIL-STD-1388-2B

APPENDIX E

Preserve. The action required to treat systems and equipment whether in stalled or stored, to keep them in a satisfactory condition.

Process. To submit to a series of actions or operations leading to a particular end.

Rebuild. Consists of those services/actions necessary for the restoration of unserviceable equipment to a like-new condition in accordance with original manufacturing standards. Rebuild is the highest degree of materiel maintenance applied to equipment. The rebuild operation includes the act of returning to zero those age measurements (hours/ miles, etc.) considered in classifying equipments/components.

Remove. To perform operations necessary to take a spare part out of the next larger assembly.

Remove and Replace. To substitute a serviceable spare part for a malfunctioned, damaged, or worn-out part. This function should only be used when the item represented by the LCN against which the task is being documented is being replaced. Remove and Replace actions will include discrete sequences for fault location, correction of the fault or malfunction by removal of the item and replacing it with a spare, and verification that the fault has been corrected. The fault location and verification may be documented one indenture above the Remove and Re place action.

Repair. Utilized as a corrective maintenance action or task function to restore to a serviceable condition an end item, assembly, subassembly, module, or component. Also to be utilized as maintenance action or task function to restore an item removed from the end item

through replacement of lower-order nonrepairable items and through rework such as patching, welding, grinding, straightening, facing, machining, or resurfacing to correct a specific fault. Repair actions will include discrete sequences for fault location, correction of the fault or malfunction, and verification that the fault has been corrected.

Service. Operations required periodically to keep an item in proper operating condition, i.e., to clean (includes decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids, or gases.

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MIL-STD-1388-2B

APPENDIX E

Service

Set Up. To prepare or make an item ready for operation.

Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of an item and comparing those characteristics with prescribed standards.

Transport. The action required to move systems and equipment from one place to another.

Transportation Preparation. The actions required to prepare an item for transportation.

A code that identifies the scheduled or unscheduled timing of the task occurrence.

Battlefield Damage Assessment and Repair, Occurring on the system/ equipment in a battlefield environment as a result of battle damage,

Calendar. Occurring as a period of time equal in length to 365 days,

Emergency. Resulting from an unforeseen combination of circumstances that calls for immediate action to prevent injury to personnel and/or damage to equipment.

Emergency

Monthly. Occurring approximately every 4 weeks or 30 days.

Monthly

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MIL-STD-1388-2B

APPENDIX E

Normal. Inspection according with, or not deviating from a norm.

Overhaul Cvcle. That period of time at which an overhaul maintenance task becomes due, as a result either of completion of a given period of time in a Standard Service Tour, or of receiving damage of a severity

that warrants overhaul.

Periodic/Phase Inspection. Inspection to be accomplished at a specified interval or multiple of the specified intervals.

Postoperative/Post Flight. Inspection accomplished after each operation/ flight.

Preoperative/Preflight. Inspection accomplished prior to the first operation/flight of the day.

Quarterly. Recurring at 3-month intervals.

Scheduled. Periodic prescribed inspection/servicing based on an elapsed time, mileage, hours of operation, etc., criteria.

Semiannually. Occurring every 6 months or twice a year.

Special. Inspection which supplements other inspections (daily, preoperational, periodic, flying hours, operating hours, or calendar) and is undertaken because of specific circumstances.

Turnaround. Performance of the maintenance task occurs during normal turnaround operations and does not affect the operability of the system.

Unscheduled. Those unpredictable maintenance requirements that had not been previously planned, but require prompt attention to maintain the system in or restore it to operating condition. These tasks may be added to, integrated with, or substituted for previously scheduled work loads.

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MIL-STD-1388-2B

APPENDIX E

Weekly Occurring in one of a series of seven-day cycles.

Codes that are assigned to indicate the maintenance levels authorized to perform the required maintenance function (see DED 277 for definitions of the individual O/M Levels).

A single-position code identifying the military service or nonmilitary major governmental agency having jurisdiction over, or executive management responsibility for, the acquisition (DED 376).

A code used to indicate the operational status and mission readiness of the item during the maintenance task.

Full Mission Capable. Performance of the maintenance task does not de grade any mission capability. To be Full Mission Capable, a system must have the capability to perform all missions under both peacetime and wartime conditions.

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MIL-STD-1388-2B

APPENDIX E

Partial Mission Capable. Performance of the maintenance task degrades the mission capability of the system. To be in Partial Mission Capable status the system must have the capability to perform at least one war time mission. Systems with no wartime mission must be able to perform any one mission to be in this status.

System Operable During Equipment Maintenance. During performance of the maintenance task the system is available to perform normal operations.

Not Mission Capable. During performance of the maintenance task the system cannot perform any wartime mission. Systems which have no wartime mission must not be capable of performing any mission in order to be in the Not Mission Capable status.

Off Equipment Maintenance. Maintenance task is performed after the item under analysis has been removed from the system.

Turnaround. Performance of the maintenance task occurs during normal turnaround operations and does not affect the operability of the system.

A two-position code assigned to each task. If the combination of the previous task code fields (task function, task interval, service designa-

tor, O/M level, and Operability Code) are unique, the entry will be “W”. If the first five fields are duplicated, within an LCN/ALC combination, the follow-on task sequence codes will be AB through 99 to differentiate the tasks.

REFERENCED TASK CODE. A task code that contains referenced task information.

REFERENCED SUBTASK TASK CODE. A task code that contains referenced subtask information.

TASK PROVISION TASK CODE. A task code of the item under analysis.

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MIL-STD-1388-2B

APPENDIX E

Indicator that special considerations must be taken into account during analysis of the task.

A single-position code keyed to task level entries in sequential descriptions and used to indicate whether or not the task is critical. A task is critical if failure to accomplish it IAW system requirements would result in adverse effects on system reliability, efficiency, effectiveness, safety, or cost. A task will also be designated as critical whenever system design characteristics approach human limitations, and thereby, significantly increase the likelihood of degraded, delayed, or otherwise impaired mission performance.

The frequency of performance or occurrence of the task identified by the task code and expressed as the number of annual occurrences. For corrective tasks the following formula applies:

For preventive tasks, one of the following procedures applies:

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