EASA AD BR-2023-04-02: Computerized Aircraft Flight Manual - Level-off Altitude - Amendment | RegNotify

Airworthiness DirectiveEASA AD BR-2023-04-02

Computerized Aircraft Flight Manual - Level-off Altitude - Amendment

Published: Apr 11, 2023
Effective: Apr 11, 2023
Deadline: Jun 10, 2023

Embraer ERJ 190 300 400

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of Embraer ERJ 190-300 and ERJ 190-400 airplanes must update the AFM Supplement 1 to the specified CAFM versions within 60 days of the directive's effective date. Compliance must be recorded in the maintenance logbook. Alternative compliance methods require approval from ANAC's Continuing Airworthiness Technical Branch (GTAC).

Summary

Brazilian Airworthiness Directive AD No. 2023-04-02 is an amendment issued by the Agência Nacional de Aviação Civil (ANAC) that applies to Embraer S.A. ERJ 190-300 and ERJ 190-400 airplane models. It addresses an issue with the Computerized Aircraft Flight Manual (CAFM) calculation of level-off altitude that may lead to unsafe obstacle clearance during takeoff in case of engine failure. The directive mandates updates to the Aircraft Flight Manual (AFM) to ensure safer flight operations.

What changed

This directive requires updating the Supplement 1 of the AFM to incorporate CAFM version 1.9 or later for ERJ 190-300 and version 1.5 or later for ERJ 190-400. The update corrects the method of calculating level-off altitude to prevent non-conservative height settings that could compromise obstacle clearance during takeoff with an engine failure. No previous AD is canceled or revised by this directive.

Why it matters

The amendment is critical for flight safety as it ensures that the level-off altitude calculation in the CAFM is conservative enough to maintain obstacle clearance during engine failure scenarios in takeoff. Operators, maintenance, and compliance teams must implement these changes to avoid potential accidents and comply with Brazilian aviation regulations. Failure to update the AFM could result in unsafe flight conditions and regulatory non-compliance.

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