On this website, you’ll find information on the Army Utilities Equipment Repairer 91C, which is an occupational field that focuses on maintaining and repairing utility equipment. The Army Utilities Equipment Repairer 91C also provides assistance with utility infrastructure, like waterlines, powerlines, gas lines, and sewage systems. You can read more about what the position entails here.
MOS 91C is a part of List of Us Army MOS Codes.

This article will help you understand the Army Utilities Equipment Repairer 91C position by providing useful examples of personnel in this field who provide assistance to military installations around the world. Additionally, it’s going to tell you about what duties vary from one installation to another as well as what qualifications are necessary for a job in this profession.
Table of Contents
MOS 91C Requirements: Qualifications and Skills
In order to become a MOS 91C, there are a few requirements you need to acquire:
Qualifications
ASVAB scores must be valid at the time of application to qualify for consideration. A minimum score of 98 on the General Maintenance (GM) segment is required. Or an 83 on the General Technical plus 88 on the GM.
They are also required to participate in Basic Combat Training for ten weeks and attendance of Advanced Individual Training (AIT) for 13 weeks at Fort Lee, VA.
Experience using tools

To be an Army Utilities Equipment Repairer, you need to know how to use equipment and hand and power tools to maintain, assemble, install, or dismantle Army electrical and electronic systems. You also need to know the functions of Army Communications Systems.
Interest in math, electricity, and shop mechanics
Interest in math and electricity is required of the MOS 91C at all times. They must understand and be proficient at repairing equipment that uses electricity and working with electrical systems that provide power to soldiers. This entails hermetically sealing off a system or device or making corrections to existing work.
Interest in shop mechanics is the preferred skill of MOS 91C. The Army’s maintenance and repair specialists serve as the backbone of military logistics. Their daily tasks range from maintaining and repairing all types of equipment to supplying and maintaining power generation, water, heating, and air conditioning systems at locations worldwide. They must operate, install, and repair a wide variety of complex equipment.
Job Responsibilities

Army Utilities Equipment Repairers are responsible for repairing or maintaining utility systems, according to the United States Department of Labor. They are also in charge of providing assistance with utility infrastructure, like waterlines, powerlines, gas lines, and sewage systems. These professionals must be familiar with the equipment they need to repair or maintain. Because there are different types of utility systems on military bases, being able to work on several different utility systems can be advantageous for this position.
Army Utilities Equipment Repairers have many responsibilities while at a military base because they provide a necessary service to men and women who serve our country. One of the primary responsibilities of an Army Utilities Equipment Repairer 91C is to provide assistance to military installations around the world. This is accomplished by performing inspections of utility systems, repairing or replacing defective parts in utility equipment, and conducting routine maintenance on utility equipment. They also regularly inspect water lines, sewage systems, gas lines, and power distribution systems to make sure they are in good working order. Most importantly, these professionals must be able to complete their work with minimal supervision in order to ensure that they can perform their duties at all hours of the day if necessary.
Preventative maintenance on systems

Army Utilities Equipment Repairers also have a responsibility to reduce or prevent damage to utility equipment by performing inspections before any damage occurs. In many cases, damage to utility equipment will be caused by mechanical failures. In some locations, accidents may cause large chunks of concrete or metal pipe to get lodged inside the pipes. Damage from these mechanical failures must be addressed before more serious problems can occur. Additionally, Army Utilities Equipment Repairers perform regular maintenance on utility systems in order to ensure that they are running properly and that they will continue to function without a problem for a long period of time. There will be times when conditions may cause a break in a water line or a sewage system. In these instances, Army Utilities Equipment Repairers must have the expertise and skills to repair utility systems as quickly as possible so that the soldiers at the military base will not be deprived of this utility service for an extended period of time. In some situations, safety issues may arise if a break is not repaired immediately.
As mentioned, Army Utilities Equipment Repairers regularly provide assistance with utility infrastructure, like waterlines, powerlines, gas lines, and sewage systems. Because soldiers need these utility systems on military installations around the world in order to carry out their missions effectively, Army Utilities Equipment Repairers are responsible for making sure that these utility systems are functioning properly. These professionals must regularly inspect water lines to ensure that there are no breaks or leaks. In many cases, breaks in water lines can cause serious damage to the equipment on military installations. For instance, if soldiers are unable to drink from their water fountains because there is no water, safety could be jeopardized for those who rely on this resource for drinking water.
In addition, Army Utilities Equipment Repairers regularly inspect gas lines to make sure that they are working properly and that there are no leaks. In some cases, a small leak can cause major problems with the operations on military installations. For instance, if soldiers depend on gas stoves to cook their meals during deployment, an extended period without cooking facilities could potentially result in lost weight gain or, worse yet, even starvation for those who are unable to eat properly due to the lack of proper food preparation due to a gas line leak.
Furthermore, Army Utilities Equipment Repairers inspect power lines to ensure that there are no breaks or leaks. If there are breaks in powerlines, it could result in an outage for the military base. If the power goes out on a military base, everything could be affected, including cooking stoves, heaters, and other utility systems. Because of this, Army Utilities Equipment Repairers must inspect powerlines on a regular basis to ensure that they are working properly and that no issues arise.

Army Utilities Equipment Repairers have a responsibility to maintain their knowledge of the utility systems that they need to repair or maintain in order to ensure that they have the expertise necessary to complete their work on time and under any conditions. They must understand how the gas lines, water lines, and telephone systems work on military installations around the world. In addition, they must be able to read blueprints and diagrams in order to find the parts they need on their own.
Complete assigned tasks

Army Utilities Equipment Repairers must be able to work on their own and complete tasks without assistance from supervisors or coworkers. Because there may be times when this is not possible, Army Utilities Equipment Repairers must be capable of communicating effectively with their supervisors and coworkers who are responsible for supervision while at a military base. Because their work conditions will be challenging, Army Utilities Equipment Repairers must be able to maintain composure in stressful situations. Because working on utility systems can be dangerous, this is an important quality for these professionals to have, even though they may not always be working with hazardous materials.
Salaries
As in the Army, the salary depends largely on the individual’s rank or time in service. Here is a list of Pay Grade, Rank, and Minimum Monthly Pay:
Private (E-1), Min Pay: $1785
Private Second Class (E-2), Min Pay: $2001
Private First Class (E-3), Min Pay: $2104
Specialist (E-4), Min Pay: $2330
Corporal (E-4), Min Pay: $2330
Sergeant (E-5), Min Pay: $2542
Staff Sergeant (E-6), Min Pay: $2775
Sergeant First Class (E-7), Min Pay: $3208
Master Sergeant (E-8), Min Pay: $4480
First Sergeant (E-8), Min Pay: $4480
Sergeant Major (E-9), Min Pay: $5473
Command Sergeant Major (E-9), Min Pay: $5473
Sergeant Major of the Army (E-9), Min Pay: $5473
Benefits
There are several benefits associated with MOS 91C:
Free on-base Housing and food
The Army MOS 91C provides a wide variety of benefits, including housing and food allowances. Soldiers are eligible for the Basic Allowance for Housing (BAH). The BAH is paid into your bank account each month and will cover rent, utilities, Internet access, furniture rental, furniture purchase cost, and other miscellaneous expenses related to quarters. This allowance can be used to help offset any housing expenses not covered by the BAH, such as mortgage or interest payments on loans secured by Army-owned real estate.
Military Clothing Allowance
All enlisted active-duty soldiers and airmen receive a clothing allowance to replace clothing that is lost or damaged while in the service. The Clothing Allowance (CA) is paid into your bank account each month and will cover any necessary replacement costs for uniforms, work clothes, etc.
Medical and Dental
The Army MOS 91C provides a wide variety of medical and dental benefits, including mandatory health and accident coverage. Medical and dental coverage is obtained through the special Program. The Program offers a wide variety of medical and dental services at participating facilities where you can visit for routine checkups, routine hospitalization and inpatient care, and outpatient care. Service members’ dependents may qualify for coverage too!
Paid sick time
Active-duty soldiers and airmen receive paid sick leave in the service, which is vital for physical, mental, and emotional health. The Soldier may use up to three days of sick leave for minor illnesses such as colds, flu, and upset stomachs. Paid sick leave may be used concurrently with any other paid leave time the Soldier is entitled to receive in accordance with applicable state and federal laws.
30 days vacation
Sick leave and annual leave earned as a Soldier or as an Officer may be used as vacation (vacation leave). Vacation hours earned as a soldier may be used for any purpose the Soldier desires, except those military obligations that require immediate retention on active duty, such as training at the Military Occupational Specialty course for a Soldier in a combat arms MOS. Vacation hours earned as an officer cannot be carried over to the next calendar year.
Tuition Assistance
The Army MOS 91C is eligible for Tuition Assistance (TA) to help pay for college courses. To qualify, the Soldier must be enrolled in a degree or certificate program at a qualifying institution. The tuition assistance courses must lead to an associate’s or bachelor’s degree or another credential such as a vocational certificate that will make the Soldier more valuable to the Army and U.S. society in general or improve the Soldier’s performance of his or her duty assignments.
Low-cost life insurance
The Army MOS 91C is eligible for low-cost term life insurance. The insurance protects dependents in the event of death from an active duty military service member or from civilian accidents upon their deaths.
Career Opportunities
Army Utilities Equipment Repairer MOS 91C plays a major role in repairing and maintaining various types of equipment, such as fire truck pumps and diesel engines. Different jobs are available for this interesting military occupational specialty:
Electrical Engineering Technicians
Electrical Engineering Technicians Electrical Engineering Technicians (ETs) repair and maintain electrical equipment used in building construction, installation, etc. They also supervise the installation of new electrical systems. It is important for ETs to work with building owners/managers to ensure their needs are met. As a member of the Army Utilities Equipment Repairer Career Field, you will be responsible for maintaining, repairing, and installing electronic equipment that is used to provide electricity or distribute heat in military operations. You will also supervise field personnel when performing manual duties such as layout wiring diagrams.
Your job opportunities are ongoing with multiple military exercises throughout the year where work can be performed at any location worldwide. The career field is not limited to this however;, it is limitless in scope and opportunity depending on your aptitude and ability. In addition to these features, you will be exposed to a variety of duties and responsibilities demanding good work habits, time management, and physical fitness.
Cooling and Freezing Equipment Operators
Cooling and Freezing Equipment Operators (CAFOs) operate cooling and freezing equipment (e.g., refrigeration plants). It is important for them to closely monitor their equipment to ensure that the desired temperature is being obtained. CAFOs must report any malfunctions or damage that may have occurred during operation so they can be repaired or replaced.
CAFOs may be called upon to change coal grates at a coal-fired power plant during an outage. They may also be requested to monitor the operation of various cooling towers during maintenance periods on some types of cooling water systems. CAFOs need to respond quickly to emergencies. They may need to act strategically to maintain pressure levels or electrical flows. They often must use protective gear, such as gloves, goggles, and earplugs. CAFOs also perform routine maintenance on cooling towers, chillers, blowers, evaporative coolers, compressors, large metal ducts, piping, pumps, valves, tanks, gauges, or similar equipment.
Electrical Repairer
Electrical Repairers (ELs) repair and maintain electrical devices and equipment, such as wires and cables. They also do quality control checks to ensure that equipment is working properly. ELs must be able to detect malfunctions or damage and come up with solutions to resolve these issues. They must also know how the equipment works because this will help them determine the best way to fix the problem.
Summary of MOS 91C
MOS 91C is a military occupational specialty (MOS) in the United States Army that deals with repairing and maintaining equipment and utilities. The Army is looking for men and women who want to serve their country by performing duties as an Army Utilities Equipment Repairer. The job of an AUE Repairman is demanding, as your responsibilities can be difficult and require a tremendous amount of discipline. You need to work long hours on your feet without becoming too tired or sore from standing so long, as well as work with heavy tools and machinery that may cause irritation or injury if not handled correctly. This MOS requires you to be very technically oriented and good at detailed work, but they will train you on the job.
FAQs
What does a 91C do in the Army?
91C is less common than the three 91 series MOSs available in the U.S. Army. The role of this particular military occupational specialty is to repair, assemble, and overhaul field-level ground equipment for their assigned unit or combatant command.
How much does a 91C make in the Army?
The base pay for an E-5 with no dependents ranges from around $2500 per month depending on where they are stationed, while an E-9 with dependents can see income in excess of $5473 per month.
What is 91 Charlie MOS in the Army?
Army 91C is one of three Military Occupational Specialities available in the Army to choose from once a recruit has entered basic training. The three jobs are 91B (Heavy Truck Driver), 91A (Maintenance Management Specialist), and 91C (Utilities Equipment Repairer). Other than occupational skills, there is no difference between these MOSs. You will be recruited depending on personal preferences and abilities, as well as what jobs are still open after all recruits have been chosen.
How long is Army 91C school?
The Army 91C course is approximately 10 weeks long for Basic Training and 13 weeks at Fort Lee for Advanced Individual Training (AIT). It is in the U.S. Army Transportation School and teaches students how to properly maintain various ground equipment found in their assigned unit or combatant command’s motor pools.