AD Amdt-39-10461

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

AD Number
Amdt-39-10461
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-SW-08-AD
FR Citation
63 FR 17677

Applicability

TypeManufacturerModelDetails
aircraft Robinson Helicopter Company Model R44 Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

Unsafe Condition

Excessive wear on the lateral cyclic trim spring shaft diameter can create a notch, causing the spring assembly to move out of its lower mount and interfere with lateral cyclic control.

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

Required Actions

Measure the lateral cyclic trim spring shaft diameter initially and repetitively. Replace the shaft spring assembly if the diameter is excessively worn. Install a modified spring assembly as a terminating action.

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

Robinson Helicopter Company Model R44 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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