EASA SIB 2007-11
FAA SAIB SW-07-29 - Aeronautical Accessories, Inc. (AAI) High Skid Gear Crosstubes
FAA Special Airworthiness Information Bulletin (SAIB) SW-07-29 and EASA Safety Information Notice 2007-11 address potential cracking and premature failure of Aeronautical Accessories, Inc. (AAI) part number 412-321 series high skid gear crosstubes installed on Bell Helicopter Textron Model 412, 412EP, 412CF, and Agusta S.p.A. Model AB412 and AB412EP helicopters. These crosstubes, installed under AAI's Supplemental Type Certificate SR01052AT, may fail before reaching the FAA-approved life limit, posing safety risks during operations.
Safety Information BulletinMaintenanceSafety MgmtBell Helicopter Textron 412Bell Helicopter Textron 412EPBell Helicopter Textron 412CFAgusta S.p.A. AB412Agusta S.p.A. AB412EP