EASA AD US-2018-11-14
Wings - Lower Outboard Wing Skin - Inspection / Repair / Modification
The Federal Aviation Administration's Airworthiness Directive 2018-11-14 addresses fatigue cracking in the lower outboard wing skin of certain Boeing 767-300 and 767-300F series airplanes equipped with Aviation Partners Boeing winglets. This directive mandates high frequency eddy current inspections and requires repair or modification as necessary to ensure structural integrity. It also outlines follow-on actions including repetitive inspections or structural modifications to prevent wing and winglet separation.