Wings - Flaps - Fairing Seal Repair
- Published
- Effective
- Deadline
- Replaces
- I-57-2021-12-3
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of GALP model G150 aircraft with serial numbers 201 through 326 must remove the left and right wing flap fairings, inspect, and reseal the fillet seal between the wing structure and fairing following Gulfstream Service Bulletin No. 150-57-197 dated January 1, 2022, or later approved revisions. This action must be completed at the next suitable planned maintenance inspection within 24 months from February 15, 2024, if not already done.
Summary
Airworthiness Directive AD ISR I-57-2021-12-3R1 issued by the State of Israel Civil Aviation Authority addresses the GALP model G150 aircraft, serial numbers 201 through 326. This directive mandates inspection and repair of wing flap fairing seals to prevent flap fairing debonding, moisture intrusion, and corrosion of the wing lower skin at rib 3 and rib 11. The repair must be performed according to Gulfstream Service Bulletin No. 150-57-197 or later approved revisions.
What changed
This revision updates the compliance time from the initial issue of AD ISR-I-57-2021-12-3. The original directive required removal, inspection, and resealing of the left and right wing flap fairings, and this revision extends the compliance window to the next suitable planned maintenance inspection within 24 months from the effective date.
Why it matters
This directive is critical for aviation professionals to ensure the structural integrity of the GALP G150 wings by preventing flap fairing detachment and corrosion, which could compromise flight safety. Operators and maintenance organizations must prioritize this inspection and repair to maintain airworthiness and regulatory compliance. Failure to comply may result in unsafe operating conditions and regulatory penalties.
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New ADs and bulletins for Gulfstream (Galp) G150 and G150, summarized like this page, every Monday.