Lion NDT Blog
September 27, 2026
NDT Level II vs. Level III: What Each Can Do, and When You Need a Level III
Both are experienced inspectors, but they're allowed to decide different things. Here's what separates an NDT Level II from a Level III, who certifies them, and when your shop needs Level III support.
September 27, 2026
First Article Inspection (AS9102): When It's Required and How the Three Forms Work
AS9102 First Article Inspection for aerospace suppliers: what triggers an FAI, when a partial FAI is enough, and how Forms 1, 2, and 3 fit together.
September 27, 2026
ISO 3834 Explained: Welding Quality Requirements for Shipyards and Marine Fabricators
What ISO 3834 requires, how to choose between its comprehensive, standard, and elementary levels, and how it fits with ISO 9001 — explained for shipyards and marine fabricators.
September 27, 2026
AWS D1.1 Welder Qualification: How the Test Works and What Records You Need
How an AWS D1.1 welder qualification test works — positions, plate thickness, visual and bend testing — and the records that keep a qualification current.
September 27, 2026
ISO 9001:2026 for Transportation Suppliers: What Changed and When to Transition
ISO 9001:2026 was published on September 16, 2026. Here's what changed, the transition dates that matter, and why it matters for transportation organizations and their suppliers.
August 16, 2026
What Is NADCAP Accreditation, and How Do You Prepare?
What NADCAP accreditation covers, how the audit works from application to accreditation, how long accreditation lasts, and what getting ready involves.
August 16, 2026
NDT Level III Sign-Off: What Repair Stations Need to Know
Why Level III oversight matters for FAA-certificated repair stations, and how on-demand Level III support compares to a full-time hire.
August 16, 2026
Choosing the Right NDT Method: UT, MT, PT, ET, and VT Compared
A practical comparison of Ultrasonic, Magnetic Particle, Liquid Penetrant, Eddy Current, and Visual Testing — and how to decide which one fits your material, defect type, and application.
August 16, 2026
AWS D1.1 vs. D17.1: Which Welding Code Applies to Your Project?
Structural steel and aerospace welds are governed by different AWS codes with very different acceptance criteria. Here's how to tell which one applies — and why it matters.
August 16, 2026
AS9100 vs. ISO 9001: What Aerospace Suppliers Need to Know
AS9100 is built on ISO 9001, but the aerospace-specific requirements it adds are exactly what separates a general quality system from one that satisfies aerospace primes and OEMs.
August 16, 2026
Quality Assurance Beyond Aerospace: QMS and Welding Quality for Marine, Construction, and Transportation
Aerospace gets most of the attention in quality management, but marine, construction, and transportation organizations rely on the same gap-assessment and continuous-improvement discipline — just under different standards.