Time Limits / Maintenance Checks - Airworthiness Limitation Section / Maintenance Program - Revision
- Published
- Effective
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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.
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.
More for Embraer ERJ 170
All 26- EASA AD BR-2026-07-03Structures - Wing Tips Cracks - InspectionJul 29, 2026
- EASA SIB 2026-03Embraer EMB-135, EMB-145, ERJ 170 and ERJ 190 aeroplanes - Radio Altimeters - 5G Interference SusceptibilityApr 14, 2026
- EASA AD BR-2020-01-02R3[Correction] Nacelles / Pylons - Engine Inboard and Outboard Pylon Lower Link Lugs - Inspection / RepairSep 23, 2025
- EASA SIB BEA-2024-06R1New Software for Air Management System (AMS)Dec 5, 2024
- EASA AD BR-2024-05-09R1
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