EASA AD BR-2026-08-01
Time Limits / Maintenance Checks - Airworthiness Limitation Section / Maintenance Program - Revision
Summary
Brazilian Airworthiness Directive AD No. 2026-08-01 issued by ANAC mandates revisions to the maintenance program for Embraer S.A. ERJ 170 series airplanes, including models ERJ 170-100 and ERJ 170-200 variants. The directive updates airworthiness limitations related to structural inspections, certification maintenance requirements, fuel system limitations, and life-limited items to ensure continued airworthiness.
What Changed
This directive cancels and supersedes previous ADs 2023-12-01 and 2020-01-02R4, introducing revised airworthiness limitations based on the latest Maintenance Review Board Report MRB-1621 revision 21. It incorporates new inspection tasks, compliance thresholds, and intervals to address fatigue crack detection and structural integrity, particularly concerning engine pylon attachment lugs.
Why It Matters
Compliance with these updated airworthiness limitations is critical to prevent structural failures that could compromise flight safety, such as engine separation risks. Operators, maintenance organizations, and compliance teams must integrate these changes to avoid unsafe conditions and ensure regulatory adherence. The directive also provides terminating action for previous ADs related to engine pylon cracks, streamlining maintenance requirements.
What To Do
Affected operators must revise their maintenance or inspection programs within three months of the directive's effective date to include the updated airworthiness limitations from MRB-1621 revision 21 and Temporary Revision TR21-1. They must perform inspections according to specified thresholds and intervals, with particular attention to engine pylon attachment lug inspections. Alternative compliance methods require ANAC approval.
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