AD 98-13-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer S.A. | EMB-145 | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-145 Series Airplanes |
| aircraft | Embraer S.A. | EMB-145ER | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-145 Series Airplanes |
| aircraft | Embraer S.A. | EMB-145LR | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-145 Series Airplanes |
| aircraft | Embraer S.A. | EMB-145MR | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-145 Series Airplanes |
Unsafe Condition
Failure of the horizontal stabilizer anti-icing valve could cause the horizontal stabilizer thermal anti-icing system to be inoperative, resulting in reduced controllability of the airplane.
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Required Actions
Replace the horizontal stabilizer anti-icing valve with a new valve and reinforce the insulation over the anti-icing ducts of the horizontal stabilizer thermal anti-icing system in accordance with EMBRAER Service Bulletin 145-30-0007.
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Compliance Time
Within 400 flight hours after the effective date of this AD
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Affected Aircraft
EMBRAER Model EMB-145 series airplanes, serial numbers 145004 through 145027 inclusive, equipped with horizontal stabilizer anti-icing valve part number 329445.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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