AD 88-20-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-IV | Airworthiness Directives; GULFSTREAM AEROSPACE CORPORATION Model G-IV Airplanes |
Unsafe Condition
Loss of engine power while flying in icing conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Insert the limitation 'Flight into known or forecast icing conditions not approved' in the AFM and alert flight crews within 48 hours after the effective date. Install placards stating the same limitation in front of each pilot's station and in clear view within 48 hours. Modify the crew alerting system and anti-ice system per Gulfstream ASC-51A before flying into icing conditions to remove AFM limitations and placards. Allow alternate compliance with FAA approval.
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Compliance Time
Within 48 hours after the effective date of this AD
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Affected Aircraft
Gulfstream Aerospace Corporation Model G-IV airplanes, serial numbers 1000 through 1059, 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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