AD 2007-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-100 | Airworthiness Directives; Bombardier Model DHC-8-100, DHC-8-200, and DHC-8-300 Series Airplanes |
| aircraft | de Havilland | DHC-8 Maintenance Program Manual to include the MLG shock strut servicing task | Airworthiness Directives; Bombardier Model DHC-8-100, DHC-8-200, and DHC-8-300 Series Airplanes |
Unsafe Condition
Over-extension of the main landing gear (MLG) shock strut piston, which allows the torque links to go over-center and rest on the piston, leading to loss in shock absorption during touchdown and potential failure of the shock strut housing, which could result in a subsequent loss of directional control.
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Required Actions
For Model DHC-8-311, -314, and -315 airplanes, modify the upper bearing in each MLG, including inspections for wear and damage, and perform all applicable corrective actions. For all affected models, revise the de Havilland DHC-8 Maintenance Program Manual to include the MLG shock strut servicing task.
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Compliance Time
Within 3,000 flight hours after the effective date for the MLG shock strut modification; within 30 days after the effective date for revising the maintenance program manual.
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Affected Aircraft
Bombardier Model DHC-8-101, -102, -103, -106, -201, -202, -301, -311, -314, and -315 airplanes, serial numbers 003 through 618 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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