AD 2025-06-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | S | Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.) Airplanes |
Unsafe Condition
Failure of the MAU 3B, as indicated by the AVNX MAU 3B FAIL caution message, leading to BRK LH FAULT and BRK RH FAULT advisory messages. This can result in an undetected loss of normal braking until the brake pedals are pressed by the pilots.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the existing airplane flight manual (AFM) to incorporate procedures associated with the failure of certain modular avionics units (MAUs), as specified in ANAC AD 2024-08-01.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance time specified in ANAC AD 2024-08-01.
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Affected Aircraft
Embraer S.A. Model ERJ 190-300 and ERJ 190-400 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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