AD 90-13-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-1159 | Airworthiness Directives; GULFSTREAM AEROSPACE CORP Model G-1159 (G-II) Series Airplanes |
Unsafe Condition
Corrosion or cracks in the wing rear beam/upper cap angle, wing upper aft plank, and the clothespin attach fitting (part number 1159WM20016) could reduce structural integrity of the wing.
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Required Actions
Within 10 days after the effective date, perform visual inspections for corrosion or cracks in specified wing components. Use a flexible borescope to inspect the lower cavity of the clothespin fitting through a drain hole (install if missing per Gulfstream CB No. 42). Inspect upper cavity via gaps, removing foam filler if needed with approved method. Check wing upper aft plank with ultrasonic equipment. Report results within 7 days. Replace or repair affected parts if corrosion/cracks found.
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Compliance Time
Within the next 10 days after the effective date of this AD, perform the inspections. If corrosion or cracks are found, prior to further flight, replace or repair. Submit report within 7 days after inspections.
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Affected Aircraft
Gulfstream Aerospace Corporation Model G-1159 (G-II) series airplanes with serial numbers: 001, 011, 021, 031, 040, 050, 061, 002, 012, 022, 033, 041, 051, 063, 003, 013, 023, 034, 043, 052, 065, 005, 014, 024, 035, 044, 053, 006, 015, 025, 037, 045, 055, 007, 017, 026, 038, 046, 056, 008, 018, 027, 039, 047, 057, 010, 019, 028, 049, 059, 020, 029.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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