Electrical Power – Charge Controller – Modification
- Published
- Takes effect
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Group 1 Ventus-3M powered sailplanes must modify the charge controller installation within two months after 30 October 2026, following Schempp-Hirth Technical Note No. 627-16 Revision 1. From the effective date, any (re)installation of charge controllers on affected sailplanes must comply with the new installation requirements. Stakeholders should consult the technical note and coordinate with Schempp-Hirth or EASA for alternative compliance methods if needed.
Summary
EASA Airworthiness Directive 2026-0197 is an official regulatory document addressing the electrical power charge controller installation on Schempp-Hirth Ventus-3M powered sailplanes. It applies specifically to serial numbers 021 MP through 125 MP with some gaps. The directive mandates modifications to prevent charge controller failures that could lead to engine shutdown during flight.
What changed
This new Airworthiness Directive introduces a required modification to the charge controller installation on affected Ventus-3M powered sailplanes. It distinguishes between two groups of aircraft based on the presence or absence of spacer sleeves in the charge controller installation and mandates modification for Group 1 aircraft within two months of the effective date. It also sets installation standards for charge controllers on all affected aircraft from the effective date onward.
Why it matters
This directive is critical for aviation professionals because it addresses a potential safety hazard where overheating of the charge controller could cause engine failure and loss of control. Operators and maintenance organizations must ensure compliance to maintain airworthiness and prevent in-flight engine shutdowns. Compliance teams need to track affected serial numbers and modification deadlines to avoid regulatory violations.
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