AD 2023-15-04
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
a stall warning system activation (i.e., stick shaker) and angle of attack (AOA) limiter engagement may occur in certain vertical gust conditions with specific intensity and frequency, which could cause a nose up movement of the airplane after the stick shaker activation, inducing an unexpected airplane response affecting its controllability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
revising the Limitations section of the existing airplane flight manual (AFM) to incorporate minimum operating speeds during flight at moderate or severe turbulence conditions, as specified in an Agência Nacional de Aviação Civil (ANAC) AD, which is incorporated by reference.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
all Embraer S.A. Model ERJ 190-300 and -400 airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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