AD 98-12-34
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | EADS CASA | CN-235 | Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes |
| aircraft | EADS CASA | CN-235-100 | Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes |
| aircraft | EADS CASA | CN-235-200 | Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes |
| aircraft | EADS CASA | CN-235-300 | Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes |
Unsafe Condition
In-flight structural deformation or failure of the vertical stabilizer, resulting in reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a structural reinforcement plate on the forward beam of the vertical stabilizer in accordance with CASA Service Bulletin SB-235-55-04, dated May 30, 1995.
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Compliance Time
Within 6 months after the effective date of this AD
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Affected Aircraft
Construcciones Aeronauticas, S.A. (CASA) Model CN-235 series airplanes as listed in CASA Service Bulletin SB-235-55-04, dated May 30, 1995; and Model CN-235 having serial number C-011.
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
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