AD Amdt-39-10249
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | EMB-120 | Airworthiness Directives; Empresa Brasileira de Aeronautica, S.A. (EMBRAER) Model EMB-120 Series Airplanes |
Unsafe Condition
Flightcrews experienced difficulties controlling the airplane during or following flight in normal icing conditions when the ice protection system was not activated when ice began to accumulate or was never activated. The formation of significant ice accretion without activation of deicing equipment could reduce controllability.
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Required Actions
Revise the Airplane Flight Manual (AFM) to include requirements for activating ice protection systems and procedures for testing system integrity. Install an ice detector system and revise the AFM to add information regarding operation in icing conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 months after the effective date of the AD (January 23, 1998).
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Affected Aircraft
All EMBRAER Model EMB-120 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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