PWS Attachment 3 - Army Materiel Maintenance Policy DA PAM 750-1.pdf

*This pamphlet supersedes DA Pam 750–1, dated 04 December 2013.

DA PAM 750–1 • 2 February 2023

UNCLASSIFIED

Headquarters Department of the Army Washington, DC

*Department of the Army Pamphlet 750 – 1

2 February 2023

Maintenance of Supplies and Equipment

Army Materiel Maintenance Procedures

History. This publication is a major revision. The portion affected by this revision are listed in the summary of change.

Applicability. This pamphlet applies to the Regular Army, the Army National Guard/Army National Guard of the United States, and the U.S. Army Reserve, unless otherwise stated. During mobilization, the proponent may modify chapters contained in this pamphlet.

Proponent and exception authority. The proponent of this pamphlet is the Deputy Chief of Staff, G – 4. The proponent has the authority to approve exceptions or waivers to this pamphlet that are consistent with controlling law and regulations. The proponent may delegate this approval authority, in writing, to a division chief within the proponent agency or its direct reporting unit or field operating agency in the grade of colonel or the civilian equivalent. Activities may request a waiver to this pamphlet by providing justification that includes a full analysis of the expected benefits and must include formal review by the activity’s senior legal officer.

All waiver requests will be endorsed by the commander or senior leader of the requesting activity and forwarded through their higher headquarters to the policy proponent. Refer to AR 25 – 30 for specific requirements.

Suggested improvements. Users are invited to send comments and suggested improvements on DA Form 2028 (Recommended Changes to Publications and Blank Forms) directly to the Deputy Chief of Staff, G – 4 via email at usarmy.pentagon.hqda-dcs-g- 4.mbx.publications@army.mil.

Distribution. This pamphlet is available in electronic media only and is intended for electronic medial only for the Regular Army, the Army National Guard/ Army National Guard of the United States, and the U.S. Army Reserve.

mailto:usarmy.pentagon.hqda-dcs-g-4.mbx.publications@army.mil mailto:usarmy.pentagon.hqda-dcs-g-4.mbx.publications@army.mil

DA PAM 750–1 • 2 February 2023 i

Contents (Listed by chapter and page number)

Chapter 1 Introduction, page 1

Chapter 2 Maintenance Overview, page 2

Chapter 3 The Army Maintenance System, page 10

Chapter 4 Field Maintenance, page 15

Chapter 5 Sustainment Maintenance, page 33

Chapter 6 Maintenance of Watercraft, page 38

Chapter 7 Maintenance of Electronics, Digital Systems, Network and Test Measurement and Diagnostic

Measurement Systems, page 39

Chapter 8 Life Cycle Maintenance Support Procedures, page 40

Chapter 9 Maintenance Programs, page 49

Chapter 10 Command Maintenance Discipline, page 60

Chapter 11 Equipment Regeneration, Reconstitution, and/or Reset, page 68

Chapter 12 Unit Maintained Equipment and Additive Manufacturing, page 69

Chapter 13 Pre-Deployment Training Equipment, page 71

Chapter 14 Non-Standard Equipment Maintenance and Sustainment, page 72

Chapter 15 Medical Equipment Maintenance and Sustainment, page 73

Appendixes

A. References, page 79

B. Maintenance Metrics and Performance Measures for Army Field Organizations, page 80

C. Determination of Tactical Maintenance Augmentation Requirements for Military Mechanics During Peacetime Garrison Operations, page 88

D. Department of Defense Core Capability Requirements Determination Methodology, page 90

Contents—Continued

DA PAM 750–1 • 2 February 2023 ii

E. DA Form 7567 (Special Repair Authority (SRA) Approval/Disapproval Sheet), page 98

F. Unit Corrosion Prevention and Control Program Standard Operating Procedure Example, page 101

Table List

Table 2 – 1: Maintenance priority designators (relating force/activity designator to urgency of need), page 3 Table 2 – 2: Maintenance priority designators and turnaround time (calendar days) Compo 1 and mobilized

Compo 2 and 3, page 4 Table 2 – 3: Turnaround time standard non-mobilized Component 2 and 3, page 4 Table 2 – 4: Primary metrics, page 5 Table 6 – 1: Active component on condition cyclic maintenance intervals by class and type of water-craft, page 38 Table D – 1: Definition of sustainment (depot) post production software support core capability require-ments, page 96

Figure List

Figure 2 – 1: Maintenance priority designators, page 6 Figure 2 – 2: Sample of total logistics response time–maintenance status report, page 7 Figure 2 – 3: Sample of modified table of organization and equipment maintenance organization turna-round time report, page 8 Figure 2 – 4: Sample contractor maintenance organization turnaround time report, page 9 Figure 3 – 1: Field-level maintenance flow to external support, page 12 Figure 3 – 2: Field-level maintenance flow to external support non-deployed Component 2 and 3, page 13 Figure 3 – 3: Field-level maintenance flow to external support table of distribution of allowance units, page 14 Figure 4 – 1: Command maintenance (preventive maintenance checks and services) cycle, page 17 Figure 4 – 2: Repair flow of a field-level maintenance fault, page 19 Figure 4 – 3: Dispatch process for equipment operators, page 22 Figure 7 – 1: Commercial off-the-shelf and/or non-standard-equipment computer repair and/or upgrade flowchart, page 40 Figure 15 – 1: Definitive life mission essential list factors, page 74 Figure 15 – 2: Flow diagram: Medical maintenance peacetime support operations, page 77 Figure B – 1: Maintenance codes, page 84 Figure D – 1: Part 1–Capability requirements determination, page 91 Figure D – 2: Part 2—Workload allocation, page 93 Figure E – 1: Special repair authority and/or one-time repair request flow, page 100

Glossary of Terms

Summary of Change

DA PAM 750–1 • 2 February 2023 1

Chapter 1 Introduction

1–1. Purpose This pamphlet provides an overview of the broad spectrum of maintenance topics required for daily maintenance operations. The pamphlet offers guidance, assistance, and procedures to support Army units with a two-level allocation of maintenance tasks. This pamphlet helps commanders, staff, leaders, and Soldiers at the division level and below achieve and sustain the Army maintenance standard for as-signed and attached equipment as prescribed in AR 750 – 1.

1–2. References, forms, and explanation of abbreviations See appendix A. The abbreviations, brevity codes, and acronyms (ABCAs) used in this electronic publica-tion are defined when you hover over them. All ABCAs are listed in the ABCA database located at https://armypubs.army.mil/abca/.

1–3. Associated publications Policy associated with this pamphlet is found in AR 750 – 1.

1–4. Records management (recordkeeping) requirements The records management requirement for all record numbers, associated forms, and reports required by this publication are addressed in the Records Retention Schedule–Army (RRS – A). Detailed information for all related record numbers, forms, and reports are located in Army Records Information Management System (ARIMS)/RRS – A at https://www.arims.army.mil. If any record numbers, forms, and reports are not current, addressed, / published correctly in ARIMS/RRS – A, see Department of the Army Pamphlet (DA Pam) 25 – 403 for guidance.

1–5. Purpose of Army maintenance operations

a. Army maintenance operations aim to generate and regenerate combat power and preserve the capi-tal investment in combat systems and equipment over its life cycle.

b. Preventive maintenance operations is performed by Soldiers in field organizations that preserve the operational condition and reliability of equipment. Operator/crew-level preventive maintenance checks and services (PMCS) is the most critical element in the Army maintenance system. The maintenance team achieves success when the organization sustains organizational equipment with operational readi-ness rates at required levels while achieving the Army maintenance standard for assigned and attached equipment.

1–6. Army maintenance standard The Army maintenance standard is prescribed in AR 750 – 1 and is mandatory for all Army organizations.

The Army maintenance standard is the foundation of the maintenance program. It is the required end state for Army equipment, enabling Army combat and combat support forces to generate combat power to accomplish assigned missions.

1–7. Commander and leader self-test for maintenance management competence Commanders and leaders must answer “yes” to the following questions to ensure that field maintenance operations achieve the mission. Positive answers to these questions serve as benchmarks and metrics for successful management.

a. Are junior leaders and Soldiers aware of their responsibility to achieve the Army maintenance stand-ard for assigned and attached equipment?

b. Do junior leaders and Soldiers provide feedback on the success of their mission?

c. Do maintenance personnel have the appropriate training and resources to accomplish assigned mis-sions and tasks?

d. Have maintenance operations integrated maintenance activities to provide maintenance and supply assistance as required with U.S. Army Materiel Command (AMC), Defense Logistics Agency (DLA), or the local National Guard/ Army Reserve?

https://armypubs.army.mil/abca/ https://www.arims.army.mil/

DA PAM 750–1 • 2 February 2023 2

e. Do Soldiers and leaders use maintenance enablers, The Army Maintenance Management System (TAMMS), and automated information systems to manage operations and record and report maintenance data?

f. Are the standard operating procedures (SOPs) up to date?

g. Are unserviceable reparable items promptly returned through retrograde channels or to the desig-nated addressee or source of repair (SOR)?

h. Are maintenance leaders technically competent to supervise Soldiers and inspect equipment? If not, what corrective action will be taken?

i. Do Soldiers with special skills fill the appropriate military occupational specialty (MOS) positions?

Have they attended schools current with their skill sets (for example, H8 recovery training; Army Oil Anal-ysis Program (AOAP) training; or test, measurement, and diagnostic equipment (TMDE) monitoring train-ing)?

j. Does the commander, supervisor, or small-unit leader visit the motor pool or equipment storage area daily or during scheduled training and inquire about maintenance operations?

k. Do the Soldiers have a positive ownership relationship with their equipment?

l. Do maintenance personnel expend a minimum of 50 percent available time on direct labor tasks for man-hour accounting and proficiency?

m. Do Soldiers know the maintenance system within the organization and comply with requirements to accomplish tasks and objectives?

n. Do Soldiers have the necessary resources (including access to TMs) to perform maintenance?

o. Does the maintenance program include incentive awards and similar recognition initiatives?

1–8. Equipment maintenance and evaluation by equipment users, operators, and Soldiers

a. Observation of equipment performance and condition is the basis of PMCS. The purpose of sched-uled / preventive maintenance is to avoid premature failure of equipment and sustain the inherent reliabil-ity designed and manufactured into the equipment. PMCS is crucial to the success of unit maintenance operations and is required by TMs (printed electronic technical manuals (ETMs) and interactive electronic technical manuals (IETMs)) before, during, and after operating the equipment. Through observation, an operator compares equipment performance and condition against an established technical standard, and reports problems before they inhibit equipment performance. The operation and maintenance standards found in the TM 10– and TM 20–series specify the technical standards applicable to Army equipment.

b. Unit leaders must supervise maintenance operations to ensure that operators, crews, and mainte-nance Soldiers work unified to sustain equipment to standard.

c. The operator (or crew) is often the first to detect changes to equipment condition and performance and is the basis for the new Army program called condition-based maintenance plus (CBM+). The CBM+ approach provides that feeder data to enable prognostic and predictive maintenance (PPMx) and allowing unit maintenance to intercept failure before it occurs.

1–9. Essential Army programs for effective maintenance management The Army has developed numerous solutions to typical field maintenance problems and management challenges. Headquarters, Department of the Army (HQDA) develops programs and provides enablers, policies, and resources based on input from the field. Army programs, enablers, and policies critical to the success of maintenance operations are found in chapter 10 of this pamphlet.

Chapter 2 Maintenance Overview

2–1. Overview

a. The four core maintenance processes to manage equipment during its useful service life include:

(1) Performance observation. Performance observation is the foundation of the Army maintenance program and is the basis of PMCS required by all equipment TMs in the before, during, and after opera-tion checks. Through observation, the operator documents observed performance against established standards and reports problems that degrade equipment before they become catastrophic. The TM 10– and TM 20–series and the appropriate technical data plan(s) designate the standards for all equipment.

PMCS includes validating the software installation remains up-to-date and the cyber posture remains

DA PAM 750–1 • 2 February 2023 3 secure. When possible, identify and document the cause of failure through fault notification codes and work order processing codes. The Army will automate the recording and transmitting of PMCS data ap-propriately captured by operator observation and embedded sensors to conduct diagnostics or prognos-tics enabling CBM/CBM+. (See ADS – 79 – HDBK for aircraft/aviation maintenance.)

(2) Equipment Services. Equipment services are specified maintenance actions consisting of routine checks, adjustments, changes, analysis, and lube to equipment, components, and systems according to the designer and engineer specifications. Services on equipment include more than the application of a lubrication order (LO) or performance of service tasks.

(a) They include repair of faults and deficiencies as determined by performance observations, system and component checks, analysis, updates, and Army equipment safety and maintenance message notifi-cation system messages required actions. Other messages include, SOUMs, maintenance advisory mes-sages, safety of flight messages, aviation safety action messages, software/cyber updates, and MWOs.

(b) The single entry point for all Army Enterprise System Integration Program (AESIP) and U.S. Army Materiel Command Logistics Data Analysis Center (LDAC) applications (https://login.aesip.army.mil/).

Maintenance personnel should use information from AESIP/LDAC applications as well as reliability analy-sis, engineering documentation and maintenance histories to identify and replace faulty items during ser-vices.

(c) MATDEVs will develop strategies to conduct services based on the condition of the equipment or evidence of need. These strategies will eliminate current time-based intervals where possible and enable

CBM/CBM+.

(3) Fault repair. Fault repair seeks to restore an equipment item to full functionality. Full functionality is the original design or engineering used trained personnel, such as mechanics/technicians, who diagnose equipment, component, assembly, and subassembly malfunctions, order the correct repair parts, and in-stall them immediately. Fault repair requires trained personnel, calibrated TMDE, technical information, and tools. Commanders, leaders, and maintenance managers prioritize repair of deficiencies based upon mission requirements. The standard is to correct deficiencies as they occur.

(4) Single-standard repair. Single-standard repair seeks to ensure that a single standard is applied to the repair of all end items, secondary items, and components that are to be returned to supply. The single standard of repair is consistent with the Army maintenance standard, see AR 750 – 1. Single-standard re-pair seeks to ensure that a single standard is applied to the repair of all end items, secondary items, and components that are to be returned to supply.

b. Commanders apply manpower, tools, test equipment, repair parts, maintenance kits, equipment, facilities, other resources, allocated dollars, and TAMMS/TAMMS–Aviation to perform maintenance on Army equipment and maintain prescribed readiness levels.

c. The maintenance procedures described in this pamphlet are not intended, nor should they be con-strued, to preclude compliance with the policies and responsibilities for type Classification, material re-lease, fielding, and transfer process in accordance with AR 770 – 2 and AR 770 – 3.

d. Aircraft maintenance must be performed in accordance with approved TMs. Any deviation from standard maintenance will be handled in accordance with AR 70 – 62.

2–2. Maintenance priorities

a. Army maintenance tasks and operations will be conducted in mission priority sequence based. In the Army's overall logistics management system, relevance and importance are expressed based on the urgency of need. Requesting organization commanders will determine the maintenance priority on work requests based upon the organization’s urgency of need designator (UND). Once the UND has been identified use table 2 – 1 to select the correct maintenance priority designator (MPD). Units can locate their force activity designator in the Structure and Manpower Allocation System or contact Deputy Chief of Staff, G – 3/5/7(DCS, G – 3/5/7) (DAMO – FM). Table 2 – 2 indicates the Army maintenance turnaround time (TAT) standard (upper limit) that is associated with the customer MPD entered on a work order.

Table 2 – 1 Maintenance priority designators (relating force/activity designator to urgency of need) — Continued

Force activity designators Urgency of need designators

A B C https://login.aesip.army.mil/

DA PAM 750–1 • 2 February 2023 4

Table 2 – 1 Maintenance priority designators (relating force/activity designator to urgency of need) — Continued

I 01 04 11

II 02 05 12

III 03 06 13

IV 07 09 14

V 08 10 15

Table 2 – 2 Maintenance priority designators and turnaround time (calendar days) Compo 1 and mobilized Compo 2 and 3 — Continued

MPD TAT standard

01 – 03 10 days

04 – 08 20 days

09 – 15 30 days

Note. Customer organizations may specify a required delivery date that is longer than 30 days when mission schedules permit.

Table 2 – 3 Turnaround time standard non-mobilized Component 2 and 3 — Continued

MPD TAT stand

01 – 03 30 days

04 – 08 60 days

09 – 15 90 days

b. UND A will be assigned to unserviceable equipment under the following circumstances:

(1) The unit/activity is unable to perform its assigned operational or training mission.

(2) Materiel to be repaired is authorized in current authorization documents — modification table of or-ganization and equipment (MTOE)/ table of distribution and allowances (TDA) — and readiness reporta-ble as written in AR 700 – 138 and listed in the current maintenance master data file (MMDF).

(3) Repair of essential facilities of an industrial/production activity manufacturing, modifying, or main-taining mission-essential materiel is required.

(4) The materiel is an intensively managed or critical item.

c. UND B is used in assignment of maintenance priorities for repair of materiel when:

(1) The unit/activity’s ability to perform its assigned operational mission is impaired. Without such ma-teriel, the unit/activity may temporarily accomplish assigned missions, but at reduced effectiveness and efficiency below the level of acceptable readiness.

(2) The materiel is equipment readiness code (ERC) A or ERC P. It is not reportable under AR 220 – 1, AR 700 – 138, or listed on the current MMDF. For example, not reportable on DA Form 2406 (Materiel Condition Status Report), DA Form 3266 – 1 (Army Missile Materiel Readiness Report), or Enterprise Ma-teriel Status Reporting (EMSR) including Army aircraft inventory, readiness status, and flying time.

(3) U.S. Army Reserve (USAR) and Army National Guard (ARNG) TDA maintenance activities are au-thorized to upgrade the UND when a not mission capable (NMC) deficiency is found. Only NMC parts are requisitioned when upgraded.

d. UND C is used in assignment of maintenance priorities for all other materiel not listed in paragraph 2 – 2. All ERC references will be in accordance with AR 700 – 138.

2–3. Maintenance records

a. Accuracy and completeness of records are fundamental for the Army to manage maintenance pro-grams and to validate the configuration of maintenance manpower resources in its force structure. This

DA PAM 750–1 • 2 February 2023 5 responsibility lies with Commanders who will verify maintenance records in the tactical enterprise logistics systems (TELS) or on manual forms.

(1) Manual forms will be used only when the use of TELS is not possible.

(2) Resource requirements submitted in accordance with AR 750 – 1 will be based upon command his-torical records and Army information resources such as the Enterprise Logistics Portal (ELP), AESIP, and Operating and Support Management Information System (OSMIS).

(3) Records from TELS such as Global Combat Support System–Army (GCSS–Army), Logistics Mod-ernization Program (LMP), Aircraft Notebook (ACN) or other DCS, G – 4 approved systems may also be used.

b. Maintenance information will be maintained and accessible to various users Army wide for planning, programming, budgeting, program execution, and logistics management purposes.

c. Historical information on sustainment maintenance operations will be archived by AMC and provided on demand to appropriate users.

d. Historical documentation will be maintained at the appropriate levels of maintenance and repair (field and sustainment) in accordance with DA Pam 750 – 8, DA Pam 738 – 751, TELS end-user manuals, and other applicable publications or directives.

e. For Army aviation assets, all maintenance engineering calls (MECs) written against a specific air-frame will be retained in aircraft historical records and the aircraft logbook as long as the deviation is in effect and in accordance with AR 70 – 62. For cartridge actuated devices and propellant actuated devices, DoD identification code (DoDIC), lot numbers, shelf life (expirations dates per DoDM 4140.27, Volumes 1 and 2), and install date information is required to be maintained in the electronic aircraft logbook in ac-cordance with AR 5 – 13.

2–4. Army maintenance management metrics

a. For Army-level maintenance management performance, the primary metrics used at HQDA are shown in table 2 – 4. Commanders will use the metrics in table 2 – 4, the metrics described in appendix B, and the summary reports in AESIP to assist in isolating problem areas and initiating corrective action.

Maintenance personnel will be trained to complete maintenance tasks assigned to them.

Table 2 – 4 Primary metrics — Continued

Metric Description

Total logistics response time– maintenance (TLRT – M).

The period that elapses between:

1. The time an item of equipment or component becomes unserviceable and

2. The time that the item or component is returned to a serviceable status after receiving requested maintenance repair or services.

Turnaround time (TAT) The period that elapses between:

1. 1. The time that a maintenance organization accepts a unit work order, followed by accomplishment of the work and

2. 2. The time at closeout of the work order.

Operational Readiness (OR) Rate 1. Determined by LIN on-hand/availability status of designated critical equipment items (pacing items) and the on-hand availability status of the other mission essential equipment items (ERC A) listed on the units MTOE or TDA.

2. OR rate goal for defense satellite communication systems is 99%

3. OR rate goal for ground and missile equipment is 90%.

4. OR rate goal for unmanned aircraft is 80%

5. OR rate goal for aviation equipment is 75%.

Notes:

TLRT–M is the primary metric for monitoring how quickly maintenance support at any/all levels responds to a commander’s mission requirements.

TLRT – M affects equipment availability, reportable under AR 700 – 138 and is visible to DCS, G – 3/5/7 staffs using GCSS–Army, EMSR, and the Strate-gic Readiness System. The item or component may undergo some or all the status changes as outlined in DA Pam 750 – 8.

TLRT–M is a DoD-recognized and Armywide metric that recognizes that warfighter support requirements have the highest priority.

DA PAM 750–1 • 2 February 2023 6

(1) Ensure that shop and bench stocks (combat spares, as applicable) are readily available to support maintenance operations. Shop stocks and bench stocks provide repair parts and supplies that fully sup-port TAT standards and customer total logistics response time–maintenance (TLRT – M) standards. Poli-cies for managing shop and bench stocks are found in AR 710 – 2:

(a) Bench stocks will be made available during maintenance operations.

(b) Repair parts needed for repair, but are not available from shop stocks will be requested following policies in AR 710 – 2; include issue priority designators consistent with the MPDs on the work orders.

(2) Ensure that Army maintenance regeneration enabler items are restored to serviceability using the same MPD as the end items for which they were exchanged. Also, ensure the items are properly man-aged. See AR 750 – 1 for Army maintenance regeneration enabler management policy.

(3) Ensure that maintenance facilities adequately support mission operations. Commanders will re-view, at least annually, the adequacy of garrison/installation maintenance facilities per the standards in

AR 210 – 14.

b. Figures 2 – 2 through 2 – 4 provide sample reports for the following metrics:

(1) TLRT – M:

(a) MTOE TLRT – M status.

(b) TDA TLRT – M customer wait time status.

(c) Contractor TLRT – M status.

(2) TAT status:

(a) MTOE maintenance organization TAT.

(b) TDA maintenance organization TAT.

(c) Contract maintenance organization TAT.

Figure 2 – 1. Maintenance priority designators

DA PAM 750–1 • 2 February 2023 7

Figure 2 – 2. Sample of total logistics response time–maintenance status report

DA PAM 750–1 • 2 February 2023 8

Figure 2 – 3. Sample of modified table of organization and equipment maintenance organization turnaround time report

DA PAM 750–1 • 2 February 2023 9

Figure 2 – 4. Sample contractor maintenance organization turnaround time report

2–5. Materiel status data flow reporting policy

a. GCSS–Army consolidates derivative unit identification codes into a reportable parent unit identifica-tion code (UIC) AA and is the required method of readiness reporting at the lowest level. GCSS–Army feeds AESIP readiness data for EMSR and reports at the readiness UIC level. EMSR data includes equipment from Ground, Missile, Manned and Unmanned Aviation, and APS. AESIP pulls EMSR data automatically from GCSS – A on a scheduled date and time, but not before 0001 on the 16th of the report month and not after 2400 hours on the 19th of the report month per AR 700 – 138. The LDAC, a subordi-nate command of AMC, is responsible for the AESIP EMSR common operating picture. The data con-tained in this report provides EMSR data/metrics necessary for analyzing Army readiness trends and pro-jections.

b. Aviation units utilizing ACN systems continue reporting readiness data using the current procedures until directed differently by HQDA or modifications, to the appropriate TELS, are applied. Aviation units that do not use ACN systems must manually enter their readiness data into the EMSR data entry tool on the EMSR module on AESIP. The Army’s goal is to support integrated enterprise aviation readiness re-porting. In the interim, ACN and EMSR data will continue to be processed on the 16th of the reporting month and immediately uploaded into the EMSR upload applications (file upload or manual entry) on the EMSR module in the AESIP portal before 2400 hours on the 19th of the month.

c. To report readiness status, the supporting unit property book officer (PBO) must enter reportable equipment into the TELS, equipment data file. PBO personnel will also use the subsystem configuration process to configure major end items with associated subsystems to report readiness for a complete

DA PAM 750–1 • 2 February 2023 10 system (for example, subsystems of an M1A2 tank system would consist of the tank, a radio, and ma-chine guns).

d. The EMSR application automatically tracks maintenance and supply actions for equipment. Unit per-sonnel update maintenance faults associated with specific items using TELS. Digital status records are available through their field-level maintenance providers. These records contain information on mainte-nance and supply actions. Unit personnel will ensure the accuracy of fault notifications, work orders, and requisitions from TELS to ensure the system of record captures the equipment’s operational readiness.

Using manual reporting procedures is only authorized when the automated EMSR capability is not availa-ble.

e. The TELS references the MMDF to identify reportable items, system configurations, authorized sub-stitutes, and relevant maintenance and supply information. LDAC maintains the MMDF in coordination with the DCS, G – 4.

Chapter 3 The Army Maintenance System

3–1. General The Army maintenance system is comprised of two levels of maintenance—field and sustainment.

3–2. Field maintenance Field maintenance is the first operation in the Army maintenance system. Field maintenance is the perfor-mance of maintenance tasks “on system” in a tactical environment using trained personnel, tools, and TMDE. Field maintenance is typically operator/crew maintenance and repair and returns to user mainte-nance operations. See DA Pam 750 – 3 for field-level maintenance process and program procedures.

3–3. Sustainment maintenance Sustainment maintenance is the second operation of the Army Maintenance System. Sustainment maintenance performs maintenance tasks “off-system” in a secure environment using trained personnel, tools, and TMDE. Sustainment maintenance is typically repaired and returned to stock and depot mainte-nance operations.

3–4. Modular maintenance strategy

a. The Modular maintenance strategy was designed to ensure the proper execution of maintenance operations within the Army from tactical to a strategic level. Following Field Manual (FM) 4 – 30, multiple modular organizations range from detachment to battalion size at echelons above brigade. Types of mod-ular units include military police, engineer, chemical, air defense, quartermaster, ordnance, transportation, signal, and others. The assigned maintenance and Class IX support capability within these organizations varies widely based upon the size and type of organization and the density of its equipment. In many in-stances, the maintenance capability is limited to wheeled vehicles and other common commodities such as small arms or signal equipment. Units that have limited or no maintenance capability or limited to no maintenance capacity rely on designated support maintenance companies operating on an area basis to augment the organization's assigned maintenance capability and capacity. Army Techniques Publication (ATP) 4 – 33 for an explanation of modular maintenance.

b. MTOE performs internal organic maintenance support authorized field-level maintenance (FLM) per-sonnel. Commanders at all levels will ensure soldiers are properly trained, and equipment is maintained in the proper state of readiness at all times per AR 600 – 20. Commanders will emphasize the conduct and supervision of PMCS performed at unit level per AR 750 – 1.

c. External Maintenance Support Operations are a support concept to ensure units without HQDA Au-thorized FLM Capability or units lacking the tools or personnel to perform FLM have the means to accom-plish repair of equipment. Units must maximize all organic maintenance capability and capacity utilization within their logistics footprint (Support Maintenance Company, EAB, etc.); includes coordinating support agreements to perform FLM before forwarding work for external maintenance support LRC/AFSBn, MSC – K, TLSC – E, or other FLM operations as outlined in DA Pam 750 – 3. The senior mission com-mander on the installation will establish the installation maintenance support plan that will outline support relations between tactical FLM EAB activities and external maintenance activities.

DA PAM 750–1 • 2 February 2023 11

d. Inter-Service support agreements are documented arrangements between organization officials of different military services to provide support from a designated provider in one Service to a recipient or-ganization in another Service. As we continue to deploy as a Joint force, we will continue to rely on other Services for logistics support from non-Army providers. When this occurs, follow Army policy found in AR 5 – 10 to establish and maintain support agreements with organizations from other military Services.

3–5. Understanding forecasting and resourcing of maintenance operations and external support

a. Resource planning for maintenance operations happens at MACOMs, but Army commanders at all levels should understand how resource planning works and can locate available resources. Resource planning and forecasting clarifies the implications of decisions on external maintenance support. This clarification ensures fluidity and continuity of operations. See figures 3 – 2 and 3 – 3.

b. FLM capability is defined as skills, expertise, and specialized repair shops and tools necessary to conduct the required maintenance task. This capability is identified on the units MTOE document as au-thorized personnel and equipment or by a FLM dependency statement in the MTOE narrative. Support Maintenance Company/Division Support Maintenance Company performs area support maintenance.

The senior commander on the installation will ensure the establishment of installation maintenance sup-port plans which outline support relations between tactical FLM EAB activities and external maintenance activities to include establishment of Support Agreements.

(1) Army commands (ACOMs), Army service component command (ASCCs), and direct reporting units (DRUs) will program field-level maintenance requirements in their POM submission and conduct coordi-nation planning with AMC/ASC. Additionally, ACOMs, ASCCs and DRUs will provide updated projection of requirements by second quarter each FY of the maintenance workload that they anticipate evacuating to the LRC. This prior planning will enable the LRCs to properly plan to support the required level of reim-bursable workload.

(2) AMC will program FLM requirements, CLVIII/ CLIX parts and labor, in the SS PEG POM to support garrison TDA unit BASOPS equipment.

DA PAM 750–1 • 2 February 2023 12

Figure 3 – 1. Field-level maintenance flow to external support

DA PAM 750–1 • 2 February 2023 13

Figure 3 – 2. Field-level maintenance flow to external support non-deployed Component 2 and 3

DA PAM 750–1 • 2 February 2023 14

Figure 3 – 3. Field-level maintenance flow to external support table of distribution of allowance units

DA PAM 750–1 • 2 February 2023 15

Chapter 4 Field Maintenance

4–1. Field maintenance principals

a. The fundamental element of field maintenance is the requirement for PMCS.

b. Operator/crew maintenance is the foundation of Army maintenance and is critical to Army readiness requiring prioritization and continuous emphasis from commanders and leaders. Operator/crew/unit maintenance personnel conduct a PMCS to verify the latest software version to comply with cyber secu-rity standards in MMIS.

(1) Commanders must establish a command climate ensuring maintenance is performed on assigned equipment per AR 750 – 1. Commanders are responsible for providing resources, assigning responsibility, and training Soldiers to achieve this standard.

(2) The Command Maintenance Discipline Program (CMDP) should be used to ensure the established command climate meets standards (see chap 11).

(3) Operator/crew performing PMCS must follow the TM 10–series. NCOs are responsible for ensuring operator/crew proficiency in the use and care of their assigned equipment. Commanders must provide adequate time for NCOs to train and achieve required levels of proficiency.

(a) Deficiencies detected during before-operations checks that make the equipment not FMC or violate a safety directive must be corrected before the mission.

(b) Deficiencies detected during the mission affecting FMC must be corrected during the mission.

(c) Faults detected before or during the mission not affecting FMC should be corrected immediately, if time permits, but must be recorded and/or reported for correction after the mission.

(d) After-operations checks detect faults resulting from the mission and ensure the identification and correction of faults to maintain the equipment to the maintenance standard after the mission is complete.

(4) Maintenance operations normally assigned to operator and/or crew include the following:

(a) Performance of TM 10–series operator and/or crew PMCS.

(b) Inspections by sight and touch of accessible components per the TM 10–series and CBM indicators or instrumentation.

(c) Lubricate, clean (including corrective actions repairing corrosive damage), preserve (including spot painting and the application of corrosion inhibiting compounds (CIC)), tighten, replace, and make minor adjustments as authorized by column C of the MAC.

(d) Replace unserviceable parts, modules, and assemblies as authorized by column C of the MAC.

1. Replacement tasks are limited to mission essential on-board spares (see AR 700 – 18).

2. Non-essential replaceable parts that are within the operator’s maintenance capability (see ATP

4 – 33) utilizing tools in the equipment’s BII.

(e) Identify and annotate corrosion and failures caused by corrosion on DA Form 5988 – E (Equipment

Maintenance and Inspection Worksheet) (available in GSCC-Army) for ground equipment or DA Form 2408 – 13 – 1 ((Aircraft Inspection and Maintenance Record) for aviation equipment and take corrective ac-tions (spot painting, proper washing, and application of CIC) within the operator’s capability per AR 750 – 59, TB 43 – 0213 and TM 43 – 0242. Aviation systems and subsystems shall annotate corrosion and failures caused by corrosion per DA Pam 738 – 751 and TM 1 – 1500 – 328 – 23.

c. Maintenance operations normally assigned to field maintenance include the following:

(1) Performance of TM 20–series unit maintenance PMCS.

(2) Inspections by sight and touch of accessible components in accordance with published TMs.

(3) Lubrication, cleaning, preserving (including spot painting) and applying CIC, tightening, replace-ment, and minor adjustments authorized by the MAC. Identify and annotate corrosion and failures caused by corrosion on DA Form 5988 – E for ground equipment or DA Form 2408 – 13 – 1 for aviation equipment and take corrective actions (spot painting, proper washing, and application of CIC) within the unit capabil-ity per AR 750 – 59, TB 43 – 0213 and TM 43 – 0242.

(4) Complete repainting as it is written in TM 43 – 0139. Painting may be completed in an Occupational Safety and Health Administration (OSHA) approved facility pending availability.

(5) Troubleshoot, diagnose, adjust, and replace unserviceable parts, modules, and assemblies as au-thorized by the MAC.

(6) Requisition, receipt, storage, issue of repair parts and major assemblies.

(7) Verification of faults and level of repair of unserviceable materiel.

DA PAM 750–1 • 2 February 2023 16

(8) If beyond the MAC authorization, escalate to the next level (sustainment) or turn-in to the appropri-ate supply support activity (SSA) per AR 710 – 2.

(9) Recovery or coordination for transportation of equipment to and from the support unit of action. See AR 750 – 1 for military member requirements. Field-level civilian mechanics conducting recovery opera-tions must be trained as an H8, H9, or the equivalent.

(10) Accomplishment of all actions directed by the AOAP.

(11) Materiel readiness reporting per AR 700 – 138 and current MMDF.

(12) Ensuring FLM modification applications are applied in accordance with AR 750 – 10.

(13) Based on the Classification of the MWO, annotate MWOs in the applicable maintenance TELS with an appropriate code.

(14) Providing maintenance support to sustainment maintenance activities, for example, Class VII re-pair.

(15) Performance of light body repair, including straightening, welding, sanding, and painting of skirts, fenders, body, and hull sections when required to prevent or control corrosion or restore structural integ-rity. The use of corrosion mobile work center, forward repair system, shop equipment contact mainte-nance, shop equipment welding, metal working and machine shop set equipment or performing welding operations using any welding device on weapons systems or their components by other than MOS trained or appropriate certified personnel, is not authorized.

(16) Turn-in maintenance repair code (MRC) F, D, H, and L recoverable components to the supporting supply activity.

(17) Providing field maintenance support to other field maintenance units and requesting support from other field maintenance units, as required.

(18) Fabrication as identified by the appropriate TM.

(19) Operation of cannibalization points, when authorized (see AR 710 – 2).

(20) Operator/crews identify equipment deficiencies and maintainers verify faults reported on the DA

Form 5988 – E. Unit maintenance personnel validate corrosion condition. The Equipment Records Parts Specialist annotates corrosion deficiencies with Cause Code 170 and object part code as applicable per AR 750 – 59 when creating a notification in the fault details cause code section in the GCSS–Army work order process. Units will take corrective actions within the organization’s capability to prevent or repair corrosion damage to Army materiel. FLM is responsible for corrosion repairs per the applicable MAC.

d. Performance of FLM will be documented using DA Form 2407 (Maintenance Request), DA Form 5990 – E (Maintenance Request (EGA)), or DA Form 5988 – E and records in the TELS according to AR 700 – 138, DA Pam 750 – 8, and DA Pam 738 – 751. This information is used to assist commanders in es-tablishing, monitoring, and evaluating their maintenance program.

e. Field maintenance personnel will perform TIs of Class II, VII, VIII, and IX materiel to determine items are serviceable and complete. All items will be inspected to—

(1) Verify serviceability of the item as outlined in AR 750 – 1.

(2) Determine if unserviceable items were rendered unserviceable because of other than fair wear and tear. In the event negligence or willful misconduct is suspected, repair will not be made until a com-mander’s release statement is received in accordance with AR 735 – 5.

(3) Determine economic reparability of excess and accident-damaged equipment.

f. See DA Pam 750 – 3 and ATP 4 – 33 for depictions of typical modular maintenance structures.

4–2. The preventive maintenance checks and services process

a. The commander will appoint, in writing, maintenance, readiness, and CMDP officers. The TM 10– and TM 20–series designate the maintenance standards for all equipment. DA Pam 750 – 8 establishes the elements of the process. An abbreviated version is described below.

b. Operators/crews will use the TM to perform PMCS before, during, and after operation.

c. During before-operation checks, correct all repairable faults. Enter uncorrected faults not already recorded on a previously completed DA Form 5988 – E and update GCSS–Army accordingly.

d. Make operational checks during actual operation of the weapon system, vehicle or other equipment, using the TM. If during the equipment mission, an opportunity is not presented for corrective action, the operator/crew chief will report the fault to the leadership at the dispatch point.

e. During after-operation checks, the operator/crew and mechanic will correct all known new faults.

The commander’s representative will decide if any remaining faults require recording on the uncorrected fault section of DA Form 5988 – E or DA Form 2408 – 14 (Uncorrected Fault Record). The nature of any

DA PAM 750–1 • 2 February 2023 17 uncorrected faults may dictate that the equipment may or may not be cleared for future use until the faults are corrected.

f. Leaders and Soldiers will use the TAMMS and TELS procedures to record equipment faults.

g. Ensure equipment using software is up-to-date with most current version and cyber compliant.

Figure 4 – 1. Command maintenance (preventive maintenance checks and services) cycle

4–3. Maintenance and supply procedures at organization or unit level

a. Commanders, leaders, and supervisors must emphasize the importance of establishing and imple-menting effective maintenance and supply procedures in all Army units. In order to do this effectively, they must understand the relationship between the policies in ARs and the procedures in DA Pams and local SOPs.

b. Army policies found in AR 710 – 2, AR 750 – 1, and similar publications are expressed in general lan-guage and often establish broad goals and objectives. Army procedures found in DA Pams and similar

DA PAM 750–1 • 2 February 2023 18 publications are more specific and help Soldiers implement policies. DA Pams and SOPs provide de-tailed, step-by-step guidelines and successful methods for achieving policy objectives. In order for a unit or organization to have a successful and effective maintenance program, the unit must have successful and effective maintenance and supply procedures along with local SOPs to implement them.

c. In addition to this pamphlet, DA Pam 738 – 751 (aviation materiel), DA Pam 750 – 3, and DA Pam 750 – 8 provide important procedural guidance for maintenance. The TELS described in terms, and the detailed procedural manuals that support them will enable implementation of policies and procedures in a faster, more complete and precise manner. DA Pam 710 – 2 – 1 and TM 38 – 8145 – 709, care of supplies in storage (COSIS) for Army material, provides detailed procedural guidance for unit supply operations.

4–4. The Army maintenance management system and standard logistics information system It is critical that all commanders, leaders, Soldiers, and their supervisors know how the Army maintenance system works. Two pamphlets describe TAMMS, DA Pam 738 – 751 for aviation materiel and DA Pam 750 – 8 for ground equipment. This procedural guidance provides information and assistance to Soldiers in a systematic format. TELS are enablers to assist commanders in accomplishing their mission and achiev-ing the maintenance standard. See figures 4 – 1 and 4 – 2.

a. Using the TELS, leaders may track a large number of maintenance actions that are on-going and require monitoring. Because Army maintenance is a technical operation, accurate records are essential to success.

b. Digital data transfer devices include optical and electromagnetic scanners, radio frequency identifi-cation devices, and electronic contact sensors. These devices use automatic identification technology (AIT) to capture data from equipment and feed the data to the TELS.

DA PAM 750–1 • 2 February 2023 19

Figure 4 – 2. Repair flow of a field-level maintenance fault

4–5. Managing the battalion (or company) maintenance program

a. Managing maintenance operations.

(1) The TELS will provide a record of all completed daily workload by local commanders, maintenance leaders, and supervisors. These records are the foundation for directing unit maintenance priorities to-ward meeting operational readiness rate requirements and achieving the maintenance standards for as-signed equipment. Details of these records will indicate where the priority workload is and how organiza-tion manpower and materiel assets are allocated.

DA PAM 750–1 • 2 February 2023 20

(2) Commanders will use the basic mission metrics of total logistics response time-maintenance (TLRT – M) and TAT in modularized organizations in accordance with AR 750 – 1. Commanders will also use the metrics in paragraph 2 – 4 to manage exclusively the MAC code F capable element in modularized commands.

(3) On a priority basis, commanders and leaders will focus closely on uncorrected faults found on indi-vidual equipment. The maintenance TELS software records all uncorrected faults from DA Form 5988 – E.

(4) GCSS–Army Plant 2000 contains business processes for field maintenance operations. Refer to the GCSS–Army End User's Manual (EUM) for job aids related to TAMMS procedures. TAMMS proce-dures are established to assist commanders and maintenance leaders in workload prioritization, schedul-ing, inspection, maintenance, and repairs. These procedures outline how to report, request outside sup-port, and record equipment maintenance, services, and repair work. They also help determine the status of equipment for readiness, equipment use, and logistics reports. Some of the more frequently used maintenance forms and reports include the following:

(a) DA Form 5988 – E.

(b) DA Form 2407.

(c) T–Code IW49N “Display Orders and Operations.”

(5) See DA Pam 750 – 3 for a list of commonly used Plant Maintenance (Plant 2000) GCSS–Army transaction codes.

(6) Commanders will ensure that maintenance personnel monitor and track compliance with Mainte-nance Messages published in MMIS.

(7) Maintenance leaders will assign all fault correction, PMCS, and other service tasks using DA Form

5988 – E as a working document for the Soldier. Leaders will list all work requested on DA Form 5989 – E (Maintenance Request Register) and record all work performed on DA Form 5990 – E in accordance with TAMMS procedures. The DA Form 5988 – E and DA Form 2404 (Equipment Inspection and Maintenance Worksheet) will serve as the equipment fault correction record for that day. DA Form 5989 – E will reflect assigned maintenance tasks and status so that leaders can manage and prioritize assets.

b. Managing total logistics response time-maintenance.

(1) Commanders will use TELS to manage TLRT – M.

(2) Commanders…