AD 2017-23-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc., Airplanes |
Unsafe Condition
The bushing holes on the engine mount rib might not conform to the engineering drawings, potentially increasing loading on adjacent fasteners and resulting in premature fatigue cracking of the engine mount rib. Failure of the engine mount rib could compromise the structural integrity of the engine mount and lead to subsequent detachment of an engine.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the maintenance or inspection program to incorporate certain airworthiness limitation items (ALIs) as specified in the service information referenced in the AD.
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Compliance Time
Within 12 months of the effective date (December 26, 2017).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier, Inc., Model CL-600-2A12 (CL-601 Variant) and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes, with specific serial number ranges for the CL-600-2B16 (CL-604 Variant) as outlined in the AD.
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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