EASA SIB 2017-17R1: Kobe Steel Ltd Material — Falsified Inspection Data

What to do

Affected organizations should review their supply chains to identify any use of Kobe Steel materials, prioritize current production, and inform competent authorities if not already done. Design approval holders must assess the impact on airworthiness, especially for critical parts, and suspend use of Kobe Steel materials where alternatives exist. Stakeholders not yet contacted by Kobe Steel Ltd but suspecting material quality issues should proactively seek information and coordinate corrective actions with EASA.

Summary

EASA Safety Information Bulletin 2017-17R1 is an airworthiness bulletin addressing falsified inspection data by Kobe Steel Ltd, a Japanese metals producer. The bulletin applies to design, production, and repair approval holders using Kobe Steel materials in certified aircraft products, parts, or components. The issue involves fabricated inspection data on materials that may not meet specifications, potentially affecting aircraft structural integrity.

What changed

This revision of EASA SIB 2017-17 provides updated recommendations based on partial results of ongoing investigations by Japanese authorities and Kobe Steel Ltd. It clarifies the scope of affected parts and extends guidance for identifying and managing the use of suspect Kobe Steel materials in aviation products. The bulletin emphasizes enhanced communication between suppliers, design approval holders, and competent authorities.

Why it matters

The falsification of inspection data by Kobe Steel Ltd poses a potential risk to the airworthiness of aircraft structures and components made from their materials. Aviation professionals must ensure the integrity of materials used in production and maintenance to maintain safety and regulatory compliance. Early identification and management of affected parts help prevent the use of substandard materials in critical aircraft systems.