Exhaust System Modification
Superseded. Comply with CF-2023-54, which replaces this document.
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Owners and operators of AQUILA AT01 and AT01-100 aeroplanes with Rotax 912S3 engines are advised to carry out the exhaust system modification as detailed in AQUILA SB-AT01-041. There is no mandatory compliance deadline since this is a recommendation, not an Airworthiness Directive. For further information, stakeholders can contact the EASA Safety Information Section via email at ADs@easa.europa.eu.
Summary
EASA Safety Information Bulletin 2023-04 is an airworthiness bulletin addressing exhaust system modifications for AQUILA AT01 and AT01-100 aeroplanes equipped with the BRP-Rotax 912S3 engine. The bulletin provides information about an improved exhaust system designed to enhance engine reliability and life. It is intended to inform operators and maintenance personnel about this recommended modification.
What changed
The bulletin introduces a modification that replaces the original exhaust system muffler and end pipe with a new muffler design and a larger diameter end pipe. This change reduces exhaust backpressure, which can positively affect engine life and reliability. The modification is based on AQUILA Service Bulletin SB-AT01-041 Issue A.01 dated 16 February 2023.
Why it matters
This information is important for aviation professionals because it addresses engine power loss events linked to the original exhaust system design. Implementing the modification can improve engine performance and reduce maintenance issues, thereby enhancing operational reliability. Although not mandatory, following the recommendation helps operators maintain optimal engine condition and safety standards.
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New ADs and bulletins for Aquila Aviation Gmbh AT01 and Brp-Rotax Gmbh & Co Kg 912 S, summarized like this page, every Monday.