AD 82-23-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Twin Commander Aircraft LLC | 685 | Airworthiness Directives; Gulfstream Model 685 Series Airplanes |
Unsafe Condition
Contamination of cabin air by engine exhaust through the induction air elbow.
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Required Actions
Replace the existing induction air elbow with P/N 610597-501 and inspect the exhaust system per Gulfstream American Corporation Service Bulletin No. 192. Flights may be conducted under FAR 21.197 to reach a location for compliance. Equivalent methods may be approved by the FAA.
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Compliance Time
within 25 hours after the effective date of this AD, unless already accomplished
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Affected Aircraft
Gulfstream Model 685 (S/Ns 12000 through 12043, and 12045 through 12066)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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