Fuselage - Ram Air Turbine Compartment Door Seal Attachment - Inspection / Rework
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform a general visual inspection of the RAT compartment door seal within 750 flight hours for ERJ 170 and ERJ 190 standard models, or within 400 flight hours or 6 months for ERJ 190-100 ECJ models, whichever occurs first. Any peeling must be bonded and the seal attachment reworked by installing the specified rivets and washers according to the relevant Embraer service bulletin revisions. Compliance must be recorded in the maintenance logbook.
Summary
Brazilian Airworthiness Directive AD No. 2019-02-02 addresses inspection and rework of the Ram Air Turbine (RAT) compartment door seal attachment on Embraer S.A. airplanes. The affected models include ERJ 170 series (100 and 200 variants), ERJ 190 series (100 and 200 variants), and ERJ 190-100 ECJ. This directive aims to ensure continued airworthiness and safety by preventing RAT seal detachment during flight.
What changed
This new directive introduces mandatory inspections and rework procedures for the RAT compartment door seal attachment to prevent peeling and potential interference with the RAT rotor. It requires a general visual inspection and corrective bonding, along with installation of recommended rivets and washers as specified in Embraer service bulletins. The directive also provides credit for previous compliance with earlier service bulletin versions.
Why it matters
The RAT is critical for emergency electrical power generation during flight. Seal peeling and tangling with the RAT rotor can lead to loss of RAT function and consequently loss of airplane controllability. Compliance with this AD is essential for operators and maintenance organizations to mitigate safety risks and ensure regulatory compliance for Embraer ERJ 170 and ERJ 190 aircraft.
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New ADs and bulletins for Embraer ERJ 170 and ERJ 190, summarized like this page, every Monday.