AD 96-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206L-1 | Airworthiness Directives; Bell Helicopter Textron, A Division of Textron Canada, Ltd. Model 206L-1 Helicopters |
Unsafe Condition
The Kratos turbine outlet temperature (TOT) indicator, part numbers 124.444-6 or 124.444-20, may incorrectly provide low-temperature readings when the battery voltage is below 10 volts, leading to overheating of the engine turbine and thermal fatigue damage to the turbine wheel.
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Required Actions
Remove the Kratos indicator with part numbers 124.444-6 or 124.444-20 and replace it with an approved airworthy TOT indicator part numbers 206-075-680-105, 206-375-006-101, or another approved part for the Bell Model 206L-1 helicopter.
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Compliance Time
within 90 days after the effective date of this AD
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Affected Aircraft
Bell Helicopter Textron, A Division of Textron Canada, Ltd. Model 206L-1 helicopters with Kratos TOT indicator part numbers 124.444-6 or 124.444-20 installed.
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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