Israel CAA ISR-I-57-2021-12-4R1

Supersedes AD ISR-I-57-202112-4 to update the compliance time. The original AD calls for the removal of the left-hand and right-hand wing flap fairings and the inspection and resealing of the fillet seal between the left and right wing structures and fairing in accordance with a Gulfstream service bulletin. The AD is intended to prevent fairing debonding and moisture intrusion that might lead to skin corrosion on the lower wing skin. The Israel CAA cited reports of several such occurrences. Compliance should occur within 24 months of the effective date of AD.