AD 2006-25-06

final rule
Data completeness: 80%

Airworthiness Directives; Fokker Model F27 Mark 500 Airplanes

AD Number
2006-25-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2006-25086
FR Citation
71 FR 71475

Applicability

TypeManufacturerModelDetails
aircraft Fokker F27 Mark 500 Airworthiness Directives; Fokker Model F27 Mark 500 Airplanes

Unsafe Condition

Fatigue cracking from an improperly machined radius of the inner tube in certain main landing gear (MLG) drag stay units (DSUs), which could lead to DSU failure and collapse of the MLG during landing.

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Required Actions

Inspect to determine whether certain MLG DSUs are installed. Perform an ultrasonic inspection to determine if certain tubes are installed in the affected DSUs. Take investigative/corrective actions if necessary.

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Compliance Time

Before further flight

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Affected Aircraft

All Fokker Model F27 Mark 500 airplanes.

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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