EASA AD BR-2022-09-01R1: Flight Controls - Elevator / Rudder Power Control Units - Replacement | RegNotify

Airworthiness DirectiveEASA AD BR-2022-09-01R1

Flight Controls - Elevator / Rudder Power Control Units - Replacement

Published: Jun 2, 2023
Effective: Jun 2, 2023
Replaces: 2022-09-01

Embraer ERJ 190 300 400

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

What to do

Operators of affected Embraer ERJ 190-300 and ERJ 190-400 aircraft must replace the specified elevator and rudder PCUs within 7,500 flight hours or 36 months from September 7, 2022, whichever occurs first. Maintenance teams should follow Embraer Service Bulletin 190E2-27-0017 revision 3 or later approved revisions for the replacement procedures and record compliance in the maintenance log. Alternative compliance methods require ANAC approval.

Summary

Brazilian Airworthiness Directive AD No. 2022-09-01R1 is a regulatory document issued by ANAC addressing the replacement of elevator and rudder Power Control Units (PCUs) on Embraer ERJ 190-300 and ERJ 190-400 aircraft with specific serial numbers. The directive mandates replacement of certain PCUs to prevent accelerated wear caused by manufacturing hydraulic decontamination procedures, which could compromise flight control surfaces and structural integrity.

What changed

This AD revises and supersedes the previous AD No. 2022-09-01 by expanding and clarifying the applicability to specific serial numbers and updating compliance requirements for PCU replacements. It introduces detailed replacement instructions for left and right elevator PCUs and upper and lower rudder PCUs with specified part numbers, along with provisions for crediting prior compliance and alternative methods of compliance.

Why it matters

This directive is critical for operators and maintenance organizations to ensure the continued airworthiness and safety of affected Embraer ERJ 190 aircraft by preventing potential structural integrity issues caused by worn PCUs. Compliance helps avoid flight control failures related to aeroelastic phenomena, thereby safeguarding flight safety and meeting regulatory requirements.

More for Embraer ERJ 190

All 54

Get the next one by email

New ADs and bulletins for Embraer ERJ 190, summarized like this page, every Monday.