AD Amdt-39-10991

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Robinson Helicopter Company (RHC) Model R22 Helicopters

AD Number
Amdt-39-10991
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-SW-79-AD
FR Citation
64 FR 2558

Applicability

TypeManufacturerModelDetails
aircraft Robinson Various Airworthiness Directives; Robinson Helicopter Company (RHC) Model R22 Helicopters

Unsafe Condition

Failure of the forward flexplate, leading to loss of main rotor drive and potential rupture of the fuel tank.

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

Required Actions

Replace the forward flexplate with an airworthy flexplate.

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

Compliance Time

Within 25 hours time-in-service (TIS) or 15 calendar days, whichever occurs first.

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

Affected Aircraft

Robinson Helicopter Company (RHC) Model R22 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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