AD 2007-22-09

final rule
Data completeness: 80%

Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes

AD Number
2007-22-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-29235
FR Citation
72 FR 61288

Applicability

TypeManufacturerModelDetails
aircraft Bombardier DHC-8-400 Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes

Unsafe Condition

Failure of the retract actuator during gear extension, caused by internal corrosion of the threads at the rod end of the retract actuator, allowing the gear to fall unrestricted with sufficient force to break the over-center drag strut.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the main landing gear (MLG) system for discrepancies, inspect the jam nut of the retract actuator to ensure the wire lock is in place and the nut is secured, inspect the retract actuator for any signs of corrosion or wear, and perform applicable related investigative and corrective actions if necessary. Submit inspection results to Bombardier.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Bombardier Model DHC-8-400 series 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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