AD 2009-10-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab | AB | Airworthiness Directives; Saab AB, Saab Aerosystems Model 340A (SAAB/SF340A) and SAAB 340B Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Saab AB, Saab Aerosystems Model 340A (SAAB/SF340A) and SAAB 340B Airplanes |
Unsafe Condition
Cracks in the frames and closing angle on the forward engine cowl door at nacelle stations 203 and 250 can lead to loosening and potential departure of the forward engine cowl door during flight.
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Required Actions
Inspect the forward engine cowl door frames and closing angles for cracks, deformation, or wear damage within 1,000 flight hours after the effective date. If damage is found, perform corrective actions before further flight. Submit inspection reports to Saab within specified timelines.
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Compliance Time
Within 1,000 flight hours after the effective date
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Affected Aircraft
Saab AB, Saab Aerosystems Model 340A (SAAB/SF340A) airplanes, serial numbers 004 through 159 inclusive, and Model SAAB 340B airplanes, serial numbers 160 through 459 inclusive, 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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