AD 2010-18-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes; and Model ERJ 190-100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes; and Model ERJ 190-100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW Airplanes |
Unsafe Condition
Cracks developing in the ram air turbine (RAT) machined support, located in the forward compartment [zone 124], due to downlock pin not being pulled during retraction. In case of RAT failure or malfunction, it will not provide electrical power to essential systems in an electrical emergency situation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the RAT machined support for cracks. Replace the support with a new part if any crack is found. Reinforce or replace the support if no crack is found. Perform these actions within 5,000 flight hours or after each RAT deployment, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5,000 flight hours or after each RAT deployment, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes; and Model ERJ 190-100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW Airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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