Airworthiness Limitations (Certification Maintenance Requirements, Airworthiness Limitation Inspections, Fuel System Limitation Items, and Life Limited Items) - Revision
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Embraer EMB 135 and EMB 145 series aircraft must revise their maintenance or inspection programs within three months of the directive's effective date to incorporate the specified airworthiness limitations from the referenced Maintenance Review Board Report revisions. Alternative inspection methods or intervals require prior approval from ANAC's Continuing Airworthiness Technical Branch. Compliance must be recorded in the maintenance logbooks.
Summary
The Brazilian Airworthiness Directive AD No. 2025-09-01 is a regulatory document issued by the Agência Nacional de Aviação Civil (ANAC) that mandates revisions to the maintenance programs of Embraer S.A. aircraft models EMB 135 and EMB 145 series. It requires incorporation of updated airworthiness limitations including Certification Maintenance Requirements, Airworthiness Limitation Inspections, Fuel System Limitation Items, and Life Limited Items to ensure continued airworthiness and structural integrity.
What changed
This directive introduces new revisions to the airworthiness limitations as detailed in the Maintenance Review Board Report MRBR-145/1150, specifically Revision 18 for Certification Maintenance Requirements and Revision 24 for Airworthiness Limitation Requirements. It mandates updates to operator maintenance documents to include new inspection tasks, thresholds, and intervals to detect fatigue cracking and other structural issues timely.
Why it matters
Compliance with these updated airworthiness limitations is critical for operators and maintenance organizations to prevent structural failures and ensure flight safety. Failure to adhere to these requirements could result in unsafe conditions due to undetected fatigue cracks or other maintenance lapses. The directive also aligns with Brazilian aviation regulations, making it mandatory for all affected aircraft registered in Brazil.
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