AD 70-14-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; Bell Model 206A Helicopters |
Unsafe Condition
Failure of the voltage regulator, Bell Part No. 206-075-027-3, could result in loss of electrical power to essential systems.
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Required Actions
Replace the voltage regulator Bell Part No. 206-075-027-3 following instructions in Bell Helicopter Company Service Letter No. 206A-139, Revision 'A', dated October 14, 1969, or later FAA approved revision. Alternate means of compliance may be approved by the Chief, Engineering and Manufacturing Branch, FAA.
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Compliance Time
within 300 hours time in service after the effective date of this airworthiness directive
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Affected Aircraft
Bell Helicopter Textron Canada Limited Model 206A helicopters equipped with voltage regulator P/N 206-075-027-3
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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