Airworthiness Directives; British Aerospace Model BAe 146 and Model Avro 146-RJ Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace Model BAe 146 and Model Avro 146-RJ series airplanes, that requires repetitive detailed visual inspections of the top wing skins for stress corrosion cracks, damage, or missing surface protective finish of the metallic surfaces; and repair, if necessary. This amendment is prompted by reports of stress corrosion cracks found on the top wing skin during routine inspection on three airplanes. The actions specified by this AD are intended to detect and correct such cracking, which could result in reduced structural integrity of the wing.