AD 89-03-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes |
Unsafe Condition
Erroneous airspeed readings due to ice in the pitot system.
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Required Actions
Install water traps and insulation pads in the main and standby pitot systems in accordance with SAAB-Scania Service Bulletin SF340-34-056. An alternate means of compliance or adjustment of compliance time may be used if approved by the FAA. Special flight permits may be issued under FAR 21.197 and 21.199 to operate airplanes to a base for AD compliance.
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Compliance Time
Within 30 days after the effective date of this AD, unless previously accomplished.
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Affected Aircraft
Saab AB, Saab Aerosystems Model SF-340A series airplanes, serial numbers -003 through -138, inclusive, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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