AD Amdt-39-9354
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | CL-600-1A11 | Airworthiness Directives; Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A and -3R), and CL-600-2B19 (Regional Jet Series 100) Series Airplanes |
Unsafe Condition
Cracking in the rudder control quadrant starting at the inside root radius of the spigot due to stress corrosion.
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Required Actions
Conduct a follow-on inspection to detect cracks in the rudder control quadrant; modify any cracked quadrant; and eventually modify certain quadrants. Replace cracked quadrants with new assemblies and retorque castellated nuts as necessary.
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Compliance Time
Before further flight
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Affected Aircraft
Bombardier Model CL-600-1A11, CL-600-2A12, CL-600-2B16 (CL-601-3A and -3R), and CL-600-2B19 (Regional Jet Series 100) series airplanes, including added applicability as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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