EASA AD US-2026-09-12
Jun 16, 2026Fuselage - Aft Drain Mast Fuselage Skin - Inspections
The Federal Aviation Administration Airworthiness Directive 2026-09-12 is a final rule addressing certain Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive inspections of the fuselage skin and structure around the aft drain mast to detect cracks or corrosion. This directive aims to maintain structural integrity and prevent rapid decompression due to potential cracks beneath the aft drain mast.
- Boeing 737100200200C300400500