AD 75-24-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 and CL-44J Airplanes |
| aircraft | Bombardier Inc. | CL-44J | Airworthiness Directives; CANADAIR Model CL-44D4 and CL-44J Airplanes |
Unsafe Condition
Fretted, pitted, or cracked main landing gear actuator attachment bolts (P/N SD300-55880, SD300-65779 or SD300-65779-12S) could result in failure of the main landing gear actuator attachment bolts.
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Required Actions
Inspect main landing gear actuator attachment bolts for fretting, pitting, or cracks. Replace bolts if necessary in accordance with Canadair Service Information Circular 328-CL44D4, Issue 2 or an approved equivalent. Reinstall bolts only if they meet specified type, life limits, and rework criteria.
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Compliance Time
Within the next 25 landings, unless already accomplished within the last 275 landings, and thereafter at subsequent intervals not to exceed 300 landings after the effective date of this AD.
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Affected Aircraft
Bombardier Inc. Model CL-44D4 and CL-44J airplanes not altered in accordance with Canadair Service Bulletin 44-478.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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