EASA SIB 2013-04R2: Hook and Loop Style Fasteners as Mounting Mechanism for an Emergency Locator Transmitter

What to do

Operators and maintenance personnel should regularly inspect textile style fasteners securing ELTs for damage, wear, and deterioration, especially where fasteners contact other materials or are glued or welded. Aircraft manufacturers and modification designers should review and update Instructions for Continued Airworthiness to include scheduled maintenance for these fasteners. Compliance with FAA and EASA recommendations is advised, although no mandatory deadlines are specified.

Summary

EASA Safety Information Bulletin 2013-04R2 is an airworthiness bulletin addressing the use of hook and loop style fasteners, such as Velcro®, as mounting mechanisms for Emergency Locator Transmitters (ELTs) on all aircraft. It highlights safety concerns related to ELTs detaching due to degradation or improper installation of textile style fasteners, which can impair ELT functionality and pose risks to aircraft safety. The bulletin applies to both installed and non-installed ELTs and references similar FAA guidance.

What changed

EASA SIB 2013-04R2 revises the previous version 2013-04R1 by extending the applicability to include non-installed ELTs secured with textile style fasteners. It also broadens the scope to cover all types of textile fasteners beyond just Velcro®. The bulletin clarifies that the safety concern does not currently warrant mandatory Airworthiness Directive action.

Why it matters

This bulletin is important for aviation professionals because ELTs are critical for emergency location, and failure due to fastener detachment can compromise safety and regulatory compliance. Operators and maintenance organizations must be aware of the risks of textile fastener degradation and inconsistent installation practices that can lead to ELT detachment. Ensuring proper inspection and maintenance of ELT mountings helps maintain ELT effectiveness and aircraft safety.