AD 99-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120 | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120ER | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120RT | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
Unsafe Condition
Aileron cable wear due to chafing between the aileron control cables and nylon grommets, which could result in failure of the aileron cables and consequent reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace fairlead support assemblies of the aileron control cable in the nacelle outboard fittings with improved assemblies. Replace certain attachment screws with new screws. Perform repetitive inspections at intervals not exceeding 400 flight hours until modification is accomplished, within 6 months after the AD's effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 6 months after the effective date of this AD, or through repetitive inspections every 400 flight hours until modification is completed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
EMBRAER Model EMB-120, EMB-120ER, EMB-120RT airplanes affected by EMBRAER Service Bulletin 120-27-0068, Change 02.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.