AD 2022-11-14
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
Deterioration of greasing effectiveness over time could lead to failure to achieve an MLG down and locked condition, resulting in an MLG collapse upon landing and potentially causing the wing of the airplane to make contact with the ground and cause the airplane to flip.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Lubricate the MLG assembly within 500 flight hours or 3 months, whichever occurs first after the effective date of this AD, and thereafter at intervals not to exceed 500 flight hours or 3 months, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 500 flight hours or 3 months, whichever occurs first after the effective date of this AD
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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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