AD Amdt-39-9438
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada | Airworthiness Directives; Bell Helicopter Textron, a Division of Textron Canada, Model 206B and 206L Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, a Division of Textron Canada, Model 206B and 206L Helicopters |
| engine | Allison | 250-C20R | Airworthiness Directives; Bell Helicopter Textron, a Division of Textron Canada, Model 206B and 206L Helicopters |
Unsafe Condition
False engine-out warnings during autorotations could result in an unnecessary emergency autorotative landing.
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Required Actions
Revise the Limitations section of the STC Rotorcraft Flight Manual Supplement (RFMS) by adding the warning statement and note from Soloy Corporation Service Bulletin 02-680 within 10 days after the effective date. Alternative methods of compliance may be approved by the FAA.
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Compliance Time
Within 10 days after the effective date
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Affected Aircraft
Bell Helicopter Textron Model 206B and 206L helicopters equipped with Allison 250-C20R engine power-out warning sensors (P/N 206-075-545-001) under STC SH4169NM, SH4179NM, or SH4729NM.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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