AD 2023-06-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
| aircraft | Bombardier | Various | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
| aircraft | de Havilland | Aircraft of Canada Limited Model DHC-8-401 and - 402 | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
Unsafe Condition
A discrepant sleeve with missing lubrication grooves can result in the fatigue failure of the forward door linkage, leading to possible interference with the extension or retraction of the corresponding main landing gear (MLG). This condition, if not corrected and when combined with other failures, could result in an asymmetric MLG configuration at landing and a subsequent runway excursion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Review of technical records and inspections to determine if a discrepant sleeve is installed, replacement of any discrepant sleeve and re-identification of the MLG forward door linkage assembly. Corrective actions include replacement of any sleeve that has missing lubrication grooves; repair or replacement of any discrepant swivel link, clevis assembly, and swivel end assembly; and re-identification of the forward door linkage. Assemble the forward door linkage, torque self-locking nuts, and re-install the forward door linkage assemblies.
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Compliance Time
Before further flight
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Affected Aircraft
De Havilland Aircraft of Canada Limited Model DHC-8-401 and -402 airplanes.
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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