Federal Register #FAA20268791

FAA Airworthiness Directive: Embraer RAT Compartment Door Seal Replacement

This opportunity involves a proposed airworthiness directive from the Federal Aviation Administration (FAA) targeting Embraer S.A. Model EMB-545 and EMB-550 airplanes. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEM Highlight: - Embraer S.A. is the sole Original Equipment Manufacturer (OEM) referenced - Products/Services Requested: - Replacement of the Ram Air Turbine (RAT) compartment door seal - Part number: 55004725901 - Quantity: 55 units (one per affected aircraft) - Notable Requirements: - The directive addresses a safety risk: the RAT compartment door seal may peel off and entangle with the RAT rotor, potentially causing loss of RAT function and airplane controllability during electrical emergencies - Compliance with Brazilian aviation authority ANAC AD 2021-12-01 is required for the replacement procedure - Estimated cost per airplane for parts and labor is $1,561 - The action is focused on maintaining airworthiness and international safety standards - No other OEMs, vendors, or service providers are mentioned

Description

The FAA proposes a new airworthiness directive (AD) for certain Embraer S.A. Model EMB-545 and EMB-550 airplanes. This AD addresses the unsafe condition caused by the possibility of the Ram Air Turbine (RAT) compartment door seal peeling off and becoming entangled with the RAT rotor. The proposed AD requires replacement of the RAT compartment door seal to prevent loss of RAT function, which could lead to loss of airplane controllability during an electrical emergency event. Comments on this proposal are due by October 13, 2026.

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