AD 99-22-06
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
Fatigue cracking and failure of the nose landing gear (NLG) turning tube, which could result in reduced structural integrity of the NLG.
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Required Actions
Replace the existing aluminum alloy NLG turning tube with a new steel NLG turning tube (P/N GA 65924) and install a P/N SB-A0002-0101 data plate. Conduct HFEC inspections prior to specified landing cycles or within compliance periods, and repeat inspections at intervals not exceeding 200 landings until replacement is done.
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Compliance Time
The replacement must be done by the later of 4,800 total flight cycles or within 1 year or 200 landings after November 26, 1999.
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Affected Aircraft
All CASA Model CN-235 series airplanes, including serial number C-011, regardless of modifications.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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