At 4M Sigma we carefully analyze all issues in the functional life of every piece of equipment we design and manufacture. For flight parts this especially includes high reliability, light weight, and No-FOD (foreign-object-debris) considerations. For ground equipment, both operational support equipment, and flight-line and backshop test equipment, “ruggedization” for the tarmac environment and “manufacturing for maintainability” are particularly important. Both types of parts must survive in a high contamination and stress environment of fuels, oils, solvents, hydraulic fluids, dust, sand, shock, vibration, EMI, and temperature extremes both high and low.

All end items are 100% inspected and tested for functionality (mating connectors, fittings, and hole patterns), electrical and mechanical interfaces, ease of installation and use, ruggedness, quality part-marking and placarding, stowability and transport, and ease of maintenance, both upgrade and repair. Initial purchase price is only part of the “total item cost equation” and the “total cost of aircraft operation and maintenance.”

Our knowledge of components, tooling, materials, and processes to meet performance, environmental, reliability, and budget requirements is extensive. We are very experienced at researching, solving, and documenting technical issues and presenting alternatives to our customers. It takes the “entire team” to derive “best value solutions.” Everything we do takes into consideration the industry’s highly skilled end-users; your installers, engineers, technicians, mechanics, ramp operators, and training personnel.

Our innovative engineering capability, our attention-to and documentation-of manufacturing details, and a great deal of caring and pride result in shipping very high quality products. Our highly trained, highly motivated employees receive annual end-of-the-year bonuses based on their measured contributions and a retirement plan (equal contribution % for management & production workers). They in-turn, ask questions, make suggestions, pay attention to detail, and care about our products, the aviation industry, our military personnel, and the flying public a great deal. It takes way more than “approved procedures in the filing cabinet.” Our approach to shared integrity makes all the difference. At stake are today’s Safety of Flight parameters, aircraft maintenance safety checks, regulatory agency compliance, and tomorrow’s ease of repairability and system upgrade.