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Quality Control Inspection Services & Audits

Precision matters in aerospace, defense, and industrial manufacturing—and a single non-conformance can cost far more than the part itself. Douglas Machine & Engineering delivers rigorous quality control inspection services and audits backed by ISO 9001:2015 and AS9100D certifications, ensuring every component meets exact specifications, regulatory standards, and your most demanding customer requirements.

Quality control inspector measuring a precision machined component on a granite surface plate in an industrial facility

Our Quality Control Inspection Services

Comprehensive inspection and audit solutions designed to meet the strictest aerospace, defense, and industrial compliance standards.

First Article Inspection

Full AS9102-compliant First Article Inspection (FAI) reporting to verify that new or revised parts conform to all engineering design and specification requirements before production proceeds.

CMM Analysis

Coordinate Measurement Machine (CMM) analysis conducted through Exact Metrology, delivering high-accuracy dimensional data to validate complex geometries and tight-tolerance components with confidence.

Dimensional Verification

Precise dimensional verification performed on certified granite surface tables using calibrated gauges, ensuring every machined and fabricated part meets specified tolerances from +/-.005 to +/-.0005.

Supplier Quality Audits

Structured supplier quality audits using performance reporting, corrective action requests, and on-site inspection to monitor, verify, and continuously improve supply chain compliance and accountability.

Quality Documentation

Comprehensive quality documentation packages including inspection records, test reports, and compliance certifications—made available upon request to support customer and regulatory audit requirements.

Corrective Action Management

Systematic corrective action request (CAR) processes that identify root causes of non-conformances, drive corrective measures, and prevent recurrence across manufacturing and supplier operations.

Certified Quality Assurance

Inspection Precision That Protects Your Production

When your parts serve aerospace cabins, defense systems, or high-volume industrial lines, there is no margin for dimensional error. Douglas Machine & Engineering brings ISO 9001:2015 and AS9100D-certified inspection discipline to every project—combining in-house metrology resources with contracted CMM analysis, granite-table dimensional checks, and structured audit protocols. From the first article through final shipment, our quality verification keeps your program on specification, on schedule, and fully documented for the most rigorous customer and regulatory reviews.

Engineer reviewing CMM coordinate measurement data on a computer screen next to a machined aerospace component
Trusted By Industry Leaders

Success Stories

See how our certified inspection services help manufacturers in aerospace, defense, and industrial sectors stay compliant and defect-free.

"Douglas Machine & Engineering's CNC Machining & Fabrication service delivers exceptional precision. Their tight tolerances and comprehensive project management from concept to installation exceeded our aerospace specifications."

James Mitchell

"We struggled coordinating multiple vendors until DM&E's Inspection service caught critical dimensional issues using CMM analysis. Their FAI reporting saved us costly rework and delays on our defense contract."

Sarah Chen

"For quality control inspection services, DM&E stands above competitors. Their AS9100D certification, CMM capabilities, and meticulous first article inspection reporting ensure our components meet aerospace standards consistently."

Robert Kowalski

"Needed welding fixtures fabricated and assembled within two weeks. DM&E's AWS-certified welders and assembly team delivered flawlessly on schedule, demonstrating their commitment to on-time delivery."

Michael Torres

"DM&E's comprehensive Quality Assurance and Inspection program, combined with their ISO 9001:2015 certification, provides tremendous value. One-stop project management eliminates multiple purchase orders and transportation costs."

Diana Patel

"Working with DM&E for five years on heat treat coordination and fabrication. Their communication, transparency, and ability to manage suppliers seamlessly demonstrates genuine partnership and reliability."

Kenneth Adams

"Their new CNC Machining shop's precision capabilities handle our 20,000-lb components with +/-.0005 tolerances flawlessly. Feature CAM programming and dimensional verification on certified granite deliver consistent quality."

Lucas Bergman

"In food-grade packaging, quality control inspection services are non-negotiable. DM&E's rigorous metrology resources, CMM analysis, and comprehensive documentation compliance give us competitive advantage and customer confidence."

Amanda Foster

"Douglas Machine & Engineering's CNC Machining & Fabrication service delivers exceptional precision. Their tight tolerances and comprehensive project management from concept to installation exceeded our aerospace specifications."

James Mitchell

"We struggled coordinating multiple vendors until DM&E's Inspection service caught critical dimensional issues using CMM analysis. Their FAI reporting saved us costly rework and delays on our defense contract."

Sarah Chen

"For quality control inspection services, DM&E stands above competitors. Their AS9100D certification, CMM capabilities, and meticulous first article inspection reporting ensure our components meet aerospace standards consistently."

Robert Kowalski

"Needed welding fixtures fabricated and assembled within two weeks. DM&E's AWS-certified welders and assembly team delivered flawlessly on schedule, demonstrating their commitment to on-time delivery."

Michael Torres

"DM&E's comprehensive Quality Assurance and Inspection program, combined with their ISO 9001:2015 certification, provides tremendous value. One-stop project management eliminates multiple purchase orders and transportation costs."

Diana Patel

"Working with DM&E for five years on heat treat coordination and fabrication. Their communication, transparency, and ability to manage suppliers seamlessly demonstrates genuine partnership and reliability."

Kenneth Adams

"Their new CNC Machining shop's precision capabilities handle our 20,000-lb components with +/-.0005 tolerances flawlessly. Feature CAM programming and dimensional verification on certified granite deliver consistent quality."

Lucas Bergman

"In food-grade packaging, quality control inspection services are non-negotiable. DM&E's rigorous metrology resources, CMM analysis, and comprehensive documentation compliance give us competitive advantage and customer confidence."

Amanda Foster

"Douglas Machine & Engineering's CNC Machining & Fabrication service delivers exceptional precision. Their tight tolerances and comprehensive project management from concept to installation exceeded our aerospace specifications."

James Mitchell

"We struggled coordinating multiple vendors until DM&E's Inspection service caught critical dimensional issues using CMM analysis. Their FAI reporting saved us costly rework and delays on our defense contract."

Sarah Chen

"For quality control inspection services, DM&E stands above competitors. Their AS9100D certification, CMM capabilities, and meticulous first article inspection reporting ensure our components meet aerospace standards consistently."

Robert Kowalski

"Needed welding fixtures fabricated and assembled within two weeks. DM&E's AWS-certified welders and assembly team delivered flawlessly on schedule, demonstrating their commitment to on-time delivery."

Michael Torres

"DM&E's comprehensive Quality Assurance and Inspection program, combined with their ISO 9001:2015 certification, provides tremendous value. One-stop project management eliminates multiple purchase orders and transportation costs."

Diana Patel

"Working with DM&E for five years on heat treat coordination and fabrication. Their communication, transparency, and ability to manage suppliers seamlessly demonstrates genuine partnership and reliability."

Kenneth Adams

"Their new CNC Machining shop's precision capabilities handle our 20,000-lb components with +/-.0005 tolerances flawlessly. Feature CAM programming and dimensional verification on certified granite deliver consistent quality."

Lucas Bergman

"In food-grade packaging, quality control inspection services are non-negotiable. DM&E's rigorous metrology resources, CMM analysis, and comprehensive documentation compliance give us competitive advantage and customer confidence."

Amanda Foster
The DM&E Difference

Why Choose Douglas Machine & Engineering?

We combine certified quality systems, advanced metrology, and a one-stop manufacturing model to deliver inspection results you can stand behind.

ISO & AS9100D Certified

Our ISO 9001:2015 and AS9100D certifications ensure every inspection meets the strictest aerospace and defense quality management standards.

Advanced Metrology

From CMM analysis via Exact Metrology to certified granite surface tables, we use precision instruments to validate even the tightest tolerances.

Full Transparency

Our open-door policy means inspection systems, procedures, and records are available upon request—supporting your audits and customer reviews without delay.

End-to-End Quality Control

We maintain quality from concept through installation—managing inspection at receiving, in-process, and final stages so the finished product never leaves our hands unchecked.

Meet the DM&E Team

Skilled professionals dedicated to precision, compliance, and exceeding customer expectations.

Douglas Machine & Engineering—operating as DM&E—is an ISO 9001:2015 and AS9100D certified precision manufacturing and inspection company serving aerospace, defense, agricultural, robotics, food-grade packaging, pharmaceutical, construction, and industrial sectors. With a CAGE Code of 87BF4 and JCP and SAM approvals, DM&E operates with the credentials that regulated industries demand. The company recently marked a significant growth milestone with the grand opening of a new CNC production shop, expanding its high-production-value capabilities. Rooted in a culture of transparency and communication, DM&E operates as a true one-stop shop—managing design, fabrication, inspection, and project coordination under one roof so quality never leaves their hands.

Industries Served: 7+Serving aerospace, defense, robotics, agriculture, pharma, construction, and industrial sectors
One-Stop ManufacturingFrom concept and design through fabrication, inspection, and installation
ISO 9001:2015 & AS9100D CertifiedCertified quality management systems for aerospace and defense compliance

Frequently Asked Questions

What does a quality control inspector do?

A quality control inspector examines manufactured parts, assemblies, or processes to verify they meet design specifications, dimensional tolerances, and regulatory standards. At DM&E, inspectors use tools such as CMM machines, calibrated gauges, and granite surface tables to measure, document, and validate every component before it progresses or ships.

What is a quality control inspection?

What is a First Article Inspection (FAI) and when is it required?

What certifications does DM&E hold for quality inspection?

Does DM&E perform supplier quality audits?

What metrology equipment is used for inspection?

Can DM&E provide quality documentation for my customer or regulatory audit?

How does DM&E handle non-conformances or defects found during inspection?

Still Have Questions About Our Inspection Services?

Speak with our quality team for a detailed consultation tailored to your compliance and inspection requirements.

Certified & Approved

Awards and Recognition

ISO 9001:2015 certification badge

ISO 9001:2015

International standard for quality management systems excellence.

AS9100D aerospace quality certification badge

AS9100D Certified

Aerospace quality management standard for defense and aviation.

SAM and JCP government approval certification badge

SAM & JCP Approved

Government-recognized approvals confirming regulatory compliance.

Get Expert Quality Control Inspection for Your Next Project

Tell us about your inspection requirements and we'll connect you with our quality team to discuss FAI, CMM analysis, supplier audits, or full quality documentation support. We respond promptly and keep your program moving.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 563-324-0611 You can also send us a quick email at lschaul@doug-machine.com