AD 2024-25-04
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
Wear on the wing hinge bearing assembly of the aileron surfaces that could lead to excessive backlash, resulting in a limit cycle oscillation phenomenon exposing the surrounding structure and systems to unacceptable vibration levels and reducing the airplane controllability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform repetitive general visual inspections of the press-fitted bushings of the left-hand (LH) and right-hand (RH) wing ailerons for migration and broken sealant; repetitive detailed inspections to measure the distance between the LH and RH wing aileron surfaces and hinge fittings; repetitive functional checks of the backlash of the LH and RH wing aileron control system; and applicable related investigative and corrective actions, including retorquing the nuts and installing cotter pins on the bolts and nuts of the attachment parts on the LH and RH wing aileron surfaces, and replacing the bearings and press-fitted and sliding bushings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours
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Affected Aircraft
Embraer S.A. Model ERJ 190-300 airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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