AD 2009-06-16
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 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes and Model ERJ 190 Airplanes |
Unsafe Condition
Failed bearings of the RAT generator may lead to RAT generator failure, which could result in reduced controllability of the airplane during in-flight emergencies.
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Required Actions
Determine the part number (P/N) and serial number (S/N) of the RAT. For airplanes with a RAT having P/N 1703781, re-identify or replace the RAT as necessary, following EMBRAER Service Bulletin 170-24-0041, Revision 01.
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Compliance Time
Within 1,300 flight hours or 6 months after the effective date of this AD, whichever occurs first.
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Affected Aircraft
All EMBRAER Model ERJ 170-100 LR, -100 SE, -100 STD, -100 SU, -200 LR, -200 STD, and -200 SU airplanes; and Model ERJ 190-100 IGW, -100 LR, -100 STD, -100 ECJ, -200 IGW, -200 LR, and -200 STD airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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