AD 77-02-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Models CL-44D4 and CL-44J Airplanes |
| aircraft | Bombardier Inc. | CL-44J | Airworthiness Directives; CANADAIR Models CL-44D4 and CL-44J Airplanes |
Unsafe Condition
Corrosion in the fuselage skin where the bonding strip under the ice guards contacts the fuselage.
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Required Actions
Inspect bonding strip in accordance with Canadair Service Information Circular No. 385-CL44 or approved equivalent. Replace bonding strips and repair fuselage skin if corrosion is detected. Repetitive inspections apply even if bonding strips were replaced with aluminum alloy.
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Compliance Time
within the next six months, unless already accomplished within the last six months, and thereafter at subsequent intervals not to exceed twenty-four months, after the effective date of this AD
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Affected Aircraft
Bombardier Inc. Models CL-44D4 and CL-44J airplanes, certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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