Engine — Rear Engine Mount Screws — Inspection
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform a one-time inspection and re-tightening of the four rear engine mount screws within 5 flight hours after the effective date if fewer than two 100-hour inspections have been done, or during the next maintenance inspection or within 5 flight hours otherwise. If discrepancies are found, corrective actions must be taken before the next flight following manufacturer instructions. Installation of affected engines is only allowed if these inspections and corrections have been completed.
Summary
EASA Airworthiness Directive 2025-0257 is a safety directive addressing Continental Aerospace Technologies GmbH Centurion 3.0 engines, specifically those installed on Diamond DA 50 C aeroplanes among others. It mandates a one-time inspection and re-tightening of the four rear engine mount screws to prevent potential engine disconnection from the aircraft structure. This directive applies to engines with specific serial numbers listed in the document.
What changed
This new airworthiness directive introduces a mandatory inspection and corrective action for the rear engine mount screws on affected Centurion 3.0 engines. It requires operators to inspect the tightening torque and re-tighten screws as necessary, following the instructions in the manufacturer's Safety Service Bulletin CG 300-1002 P1. No previous AD is superseded by this directive.
Why it matters
This directive is critical for aviation professionals because loose or missing rear engine mount screws could lead to engine separation and loss of aircraft control. Compliance ensures continued airworthiness and safety of affected aircraft, preventing potentially catastrophic failures. Maintenance and compliance teams must prioritize this inspection to meet regulatory requirements and maintain operational safety.
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New ADs and bulletins for Continental Aerospace Technologies, Gmbh CENTURION 3.0, summarized like this page, every Monday.