AD 98-20-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | SAAB 2000 | Airworthiness Directives; Saab Model SAAB 2000 Series Airplanes |
Unsafe Condition
Chafing between the hydraulic pipe on the emergency uplock release system of the main landing gear (MLG) and an attachment bolt on a structural panel could result in rupture of the hydraulic pipe, loss of hydraulic pressure, and consequent inability to activate the emergency MLG extension.
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Required Actions
Perform a visual inspection within 300 flight hours after the effective date to detect hydraulic pipe chafing. Repeat inspections every 300 flight hours if no chafing found. If chafing detected, test for leaks; repair the pipe and modify the attachment bolt and hole within 900 flight hours to terminate inspections.
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Compliance Time
Within 300 flight hours after the effective date of this AD for initial inspection; repeat inspections at intervals not exceeding 300 flight hours. Modification required within 900 flight hours after the effective date.
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Affected Aircraft
Saab Model SAAB 2000 series airplanes, serial numbers -002 through -050 inclusive, and -052, -053, and -060; excluding serial number -051.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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