Regulacje i polityka gospodarcza · 12/11/1996

Airworthiness Directives; Boeing Model 747 Series Airplanes

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 747 series airplanes. This action requires inspections to detect disbonding, corrosion, and cracking at the longitudinal rows of fasteners in the bonded skin panels in section 41 of the fuselage, and repair, if necessary. This amendment is prompted by a report of skin cracking due to disbonding of the internal doubler of the cracked skin panels. The actions specified in this AD are intended to prevent rapid decompression of the airplane due to disbonding and subsequent cracking of the skin panels.