AD 99-19-28
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120ER | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120RT and -120ER Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120RT | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120RT and -120ER Series Airplanes |
Unsafe Condition
Fatigue cracking or splitting of the brake stator disk at the thermal expansion slots, which could result in loss of brake effectiveness and runway excursions.
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Required Actions
Conduct initial and repetitive detailed visual inspections of the main landing gear brake assemblies within 400 flight hours after the effective date, and every 400 flight hours thereafter. Replace any discrepant brake assemblies with new or serviceable assemblies.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 400 flight hours after the effective date
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Affected Aircraft
EMBRAER Model EMB-120RT and -120ER series airplanes equipped with brake assemblies part numbers 2-1585 or 2-1479-1.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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