Airworthiness Directive · Amendment 39-10264 · Boeing Model 747-100, 747-200, 747-300, 747SR, and 747SP Series Airplanes
Boeing Model 747-100, 747-200, 747-300, 747SR, and 747SP Series Airplanes
Superseded. A later AD replaced this one: AD 2000-10-23. Comply with the one in force.
Model 747-100, 747-200, 747-300, 747SR, and 747SP series airplanes having line positions 201 through 886 inclusive; certificated in any category.
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 747-100, 747-200, 747-300, 747SR, and 747SP series airplanes. This action requires a one-time inspection to detect cracking of the longeron splice fittings at stringer 11, on the left and right sides at body station 2598, and replacement of any cracked fitting with a new fitting. This amendment is prompted by reports that fatigue cracking was found on longeron splice fittings. The actions specified in this AD are intended to detect and correct such fatigue cracking, which could result in reduced controllability of the horizontal stabilizer.
