AD Amdt-39-11000

final rule
Data completeness: 60%

Airworthiness Directives; Agusta S.p.A. Model A109C and A109K2 Helicopters

AD Number
Amdt-39-11000
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-SW-55-AD
FR Citation
64 FR 2559

Applicability

TypeManufacturerModelDetails
aircraft Agusta S.p.A. Model A109C and A109K2 Airworthiness Directives; Agusta S.p.A. Model A109C and A109K2 Helicopters

Unsafe Condition

Wear in the bearings of the main rotor pitch change link assembly can cause increased vibration and subsequent reduced controllability of the helicopter.

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

Required Actions

Remove the main rotor pitch link assemblies, measure the radial play of the upper and lower spherical bearings, and replace any unairworthy bearings.

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

Agusta S.p.A. Model A109C and A109K2 helicopters

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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