Instructions to install a doubler at the attachment location of the wing Rib 0 and the front spar.
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Gulfstream G280 aircraft serial numbers 2003 through 2033 must comply with Gulfstream Service Bulletin No. 280-57-099 by installing the doubler at the wing Rib 0 and front spar attachment location. Non-destructive testing must be performed prior to installation, and any detected cracks require contacting Gulfstream Customer Support. The modification must be completed no later than 5,000 flight cycles or by February 15, 2021, whichever comes first.
Summary
Airworthiness Directive AD ISR-I-57-2020-06-01 issued by the State of Israel Civil Aviation Authority mandates modifications for Gulfstream G280 aircraft with serial numbers 2003 through 2033. The directive provides instructions to install a doubler at the attachment location of wing Rib 0 and the front spar to address fatigue cracking issues. This applies to all G280 aircraft certificated in any category.
What changed
This new Airworthiness Directive introduces a mandatory installation of a doubler at the wing Rib 0 and front spar attachment point on affected Gulfstream G280 aircraft. It requires removal of existing fasteners at the joint and performing non-destructive testing before installation. The directive references Gulfstream Service Bulletin No. 280-57-099 for detailed instructions.
Why it matters
This directive is critical for maintaining structural integrity and flight safety by preventing potential fatigue cracks at a key wing attachment point. Operators and maintenance organizations must comply to avoid unsafe conditions and regulatory violations. Compliance ensures continued airworthiness and reduces risk of in-service failures.
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