AD 2006-21-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and EMB-145XR Airplanes |
Unsafe Condition
Undetected build-up of clear ice on the wing surfaces, which could lead to reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install complete electrical connections and provisions to add an additional indication device to the clear-ice indication system. Replace the existing clear-ice indication lamp with a new lamp having a new part number. Modify electrical connections to add an indication device. Remove the 'Clear-Ice Inoperative' placard and reactivate the clear-ice additional indicator lamp.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 months or 5,000 flight hours after the effective date of this AD, whichever comes first.
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Affected Aircraft
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145XR airplanes listed in EMBRAER Service Bulletin 145-30-0035, Revision 03, dated March 8, 2005; and Model EMB-135BJ airplanes listed in EMBRAER Service Bulletin 145LEG-30-0002, Revision 01, dated January 4, 2005; certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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