EASA AD US-2017-26-07
Fuselage - Frame Web at STA 1681 - Inspection
Summary
Federal Aviation Administration Airworthiness Directive 2017-26-07 is a final rule addressing certain Boeing 757-200, -200CB, and -300 series airplanes. It mandates inspections of the fuselage frame web at station 1681 for fatigue cracking, including checks for existing repairs and repetitive inspections, to ensure structural integrity. This directive responds to reports of fatigue cracks that could compromise airplane safety.
What Changed
This new airworthiness directive introduces mandatory inspections of the fuselage frame web at STA 1681, requiring operators to inspect for existing repairs and perform repetitive high frequency eddy current inspections. It also requires applicable repairs if cracks are found and incorporates the latest Boeing Alert Service Bulletin 757-53A0100, Revision 1, dated September 14, 2017, allowing for updated inspection intervals and procedures.
Why It Matters
This directive is critical for aviation professionals because it addresses a structural fatigue issue that could reduce the airplane's structural integrity, potentially impacting flight safety. Operators and maintenance organizations must comply to detect and repair cracks early, preventing possible in-service failures. Compliance ensures continued airworthiness and regulatory adherence for affected Boeing 757 models.
What To Do
Operators of Boeing 757-200, -200CB, and -300 series airplanes must inspect the fuselage frame web at STA 1681 for existing repairs and perform repetitive inspections as specified in Boeing Alert Service Bulletin 757-53A0100, Revision 1. Any cracks found must be repaired following FAA-approved procedures. Compliance with this AD is required by February 7, 2018.
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