Mason Jeffries
328 Westover Rd, Whiteman Air Force Base,MO
Summary
Detail-oriented Aerospace Ground Equipment Supervisor and Maintenance Technician with expertise in leading maintenance teams and troubleshooting electrical, hydraulic, pneumatic, and diesel systems. Managed 20 personnel and 101 critical equipment assets valued at $34M while ensuring safety, quality assurance, and regulatory compliance. Proven ability to improve equipment reliability, coordinate facility and maintenance priorities, interpret technical documentation, and deliver responsive support in high-tempo environments.
Overview
1
1
Certification
8
8
years of professional experience
Work History
Aerospace Ground Equipment Supervisor
United States Air Force
Whiteman Air Force Base, Missouri
06.2025 - Current
- Supervised daily maintenance, inspection, troubleshooting, and repair of aerospace ground equipment supporting aircraft operations and mission readiness.
- Managed 20-personnel maintenance team, ensuring inspection, repair, and operational readiness of 30 munitions handling equipment valued at $27M.
- Led 1,800 equipment inspections and 307 maintenance actions, achieving a 97% quality-assurance pass rate in support of munitions operations.
- Trained airmen on inspection procedures, safety practices, and maintenance standards, enhancing team compliance and workforce productivity.
- Oversaw 13,000-square-foot maintenance facility, coordinating 19 building repairs and safety upgrades to maintain operational integrity.
Aerospace Ground Equipment Technician
United States Air Force
Whiteman Air Force Base, Missouri
06.2020 - 05.2025
- Diagnosed and repaired electrical, hydraulic, pneumatic, and diesel systems on aviation ground-support equipment to ensure optimal performance.
- Executed scheduled preventive maintenance and inspections per technical procedures and manufacturer requirements, enhancing equipment reliability.
- Interpreted technical manuals, directives, wiring diagrams, and schematics to perform accurate equipment inspections, troubleshooting, repairs, and maintenance.
- Identified, documented, and coordinated repair of ground-support equipment discrepancies to maintain equipment availability and minimize operational downtime.
Retail Associate
Goodwill
Lawrenceburg, TN
10.2018 - 05.2020
- Guided customers and donors through purchases, donation drop-offs, and product inquiries to enhance their shopping experience.
- Greeted customers, provided product-location assistance, and delivered responsive service to support a positive shopping experience and customer retention.
- Sorted and arranged clothing, housewares, and general merchandise to ensure a tidy, accessible sales floor.
Education
Airman Leadership School
Whiteman Air Force Base, MO04-2025
Aerospace Ground Equipment Apprentice
Aerospace Ground Equipment Technical School
Wichita Falls, TX12-2020
High School Diploma -
Lawrence County High School
Lawrenceburg, TN05-2020
Skills
- Aerospace maintenance
- Electrical troubleshooting
- Hydraulic systems repair
- Preventive maintenance
- Equipment inspection
- Safety procedures
- Quality assurance
- Technical Manual interpretation
- Team leadership
- Attention to detail
Certification
- CFC/HCFC Refrigerant Processing Certification - DoD Environment Protection Agency
Timeline
Aerospace Ground Equipment Supervisor
United States Air Force
06.2025 - Current
Aerospace Ground Equipment Technician
United States Air Force
06.2020 - 05.2025
Retail Associate
Goodwill
10.2018 - 05.2020
Airman Leadership School
Aerospace Ground Equipment Apprentice
Aerospace Ground Equipment Technical School
High School Diploma -
Lawrence County High School