AD 47-41-08

final rule
Data completeness: 60%

Airworthiness Directives; Bell Model 47B Series Airplanes

AD Number
47-41-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Scotts-Bell 47 Inc 47B Airworthiness Directives; Bell Model 47B Series Airplanes
aircraft Scotts-Bell 47 Inc 47B3 Airworthiness Directives; Bell Model 47B Series Airplanes

Unsafe Condition

Interference between stabilizer bar mixing levers and the stabilizer bar damper when the stabilizer bar is depressed 5 degrees.

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

Required Actions

Rework stabilizer bar mixing levers by cutting away the lower inboard edge within a 2-inch radius from the center position 1 1/2 inches from the vertical centerline of the center hole. The cut must not exceed 1/8 inch in depth and sharp corners must be rounded with a 1/2-inch radius.

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

Compliance Time

next 100-hour inspection

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

Affected Aircraft

Scotts-Bell 47 Inc Model 47B and 47B3 through serial number 78

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

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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