AD 98-13-29
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120 | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120ER | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120RT | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
Unsafe Condition
Positioning the power levers below the flight idle stop while the airplane is in flight may result in engine overspeed with consequent loss of engine power and potential excessive asymmetric propeller drag reducing aircraft controllability.
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Required Actions
Revise the Limitations Section of the Airplane Flight Manual (AFM) to prohibit positioning the power levers below the flight idle stop during flight and include a statement on the consequences of such positioning.
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Compliance Time
Within 30 days after the effective date of this AD
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Affected Aircraft
All Model EMB-120 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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