AD 99-21-31
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | SAAB 340B | Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B Series Airplanes |
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B Series Airplanes |
Unsafe Condition
The cam screws of the engine power levers may back out and interfere with the movement of the engine power levers, resulting in limited engine power and reduced controllability of the airplane.
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Required Actions
Remove the control quadrant, secure the power lever cam screws with Loctite, and reinstall the control quadrant. Compliance must be accomplished before further flight.
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Compliance Time
Before further flight
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Affected Aircraft
Saab Model SAAB SF340A and SAAB 340B series airplanes as listed in Saab Service Bulletin 340-76-042 dated May 28, 1998.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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