AD 2010-09-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; British Aerospace Regional Aircraft Model Jetstream Series 3101 and Jetstream Model 3201 Airplanes |
Unsafe Condition
Loss of electrical signal to the `up' solenoid of the flap selector valve, combined with normal internal leakage in the hydraulic system, results in hydraulic pressure being supplied to the `down' side of the flap hydraulic jack, potentially causing uncommanded flap extensions and wing trailing edge damage.
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Required Actions
Install modification JM7861, Introduction of a Wire Link to Flap Selector Switch, following BAE Systems British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 27-JM7861.
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Compliance Time
Within 6 months after June 3, 2010
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Affected Aircraft
Jetstream Series 3101 and Jetstream Model 3201 airplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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