EASA AD US-2018-03-10
Fuselage - Skin Scribe Line Damage - Inspection
Summary
FAA Airworthiness Directive 2018-03-10 is a final rule addressing all Boeing 757-300 series airplanes. It mandates detailed inspections for scribe line damage on the fuselage skin caused by maintenance tools, along with required corrective actions to ensure structural integrity.
What Changed
This new airworthiness directive introduces mandatory inspections for scribe line damage on the fuselage skin of Boeing 757-300 airplanes. It also provides exceptions for certain FAA-approved repairs and clarifies that installation of Supplemental Type Certificate STC ST01518SE does not affect compliance.
Why It Matters
This directive is critical for aviation professionals as undetected scribe line damage can lead to fatigue cracking and potential rapid decompression, compromising aircraft structural safety. Operators and maintenance teams must ensure compliance to prevent unsafe conditions and maintain airworthiness.
What To Do
Operators of Boeing 757-300 airplanes must perform detailed inspections for scribe line damage as specified in Boeing Alert Service Bulletin 757-53A0107 dated July 20, 2017. Any damage found must be corrected following the service bulletin instructions. Compliance with this directive is required by March 19, 2018.
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