AD 2008-16-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream | Aerospace LP Model Galaxy | Airworthiness Directives; Gulfstream Aerospace LP Model Galaxy Airplanes and Gulfstream 200 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Gulfstream Aerospace LP Model Galaxy Airplanes and Gulfstream 200 Airplanes |
Unsafe Condition
The 3 supporting blocks [installed on hydraulic tubes] were made of Teflon, which is unsuitable material for this application. Excessive wear of the blocks was discovered on numerous aircraft, as well as several cases of chafing between the loosely supported tubes. In one case, hydraulic fluid was lost due to fatigue failure of an inadequately supported tube. Loss of hydraulic fluid causes subsequent multiple failures of hydraulically operated systems.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a visual inspection of the clamping blocks for wear and of the hydraulic tubes to determine if any tube is loose or damaged. If clamping blocks are not worn, repeat the inspections at intervals not to exceed 300 flight hours or six months. Replace chafed, damaged, or cracked tubes. Replace blocks made of Teflon in the right-hand aft fuselage equipment bay with new blocks made of Nylon 6/6.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours or one month after the effective date of this AD, whichever occurs first.
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Affected Aircraft
Gulfstream Model Galaxy and Gulfstream 200 airplanes, serial numbers 004 through 156, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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