EASA AD US-2018-01-08
Fuselage - Frame Outboard Chord / Auxiliary Chord - Inspection
Federal Register Volume 83, Number 9 (2018-01-12) Final Rule Airworthiness Directive 2018-01-08 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates inspections for fatigue cracking in the frame outboard chord and the radius of the auxiliary chord, with required corrective actions if cracks are found. This directive aims to maintain structural integrity and prevent rapid decompression.