AD 93-12-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | SAAB 340B | Airworthiness Directives; SAAB-SCANIA Model SF340A and 340B Series Airplanes |
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; SAAB-SCANIA Model SF340A and 340B Series Airplanes |
Unsafe Condition
Reduced structural integrity of the fuselage due to the absence of an additional protective shield between the existing heat protection and the air cycle machine.
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Required Actions
Install an additional protective shield between the existing heat protection and the air cycle machine in accordance with SAAB 340 Service Bulletin SAAB 340-53-028. Operators may request alternative methods of compliance or adjustments to the compliance time through the FAA, which must be approved by the Manager, Standardization Branch, ANM-113.
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Compliance Time
Within 3,000 hours time-in-service after the effective date of this AD (July 22, 1993).
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Affected Aircraft
SAAB-SCANIA Model SF340A series airplanes, serial numbers 004 through 159; Model SAAB 340B series airplanes, serial numbers 160 through 252 and 254 through 258.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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