EASA AD US-93-14-19R1
CANCELLED: Wings - Trailing Edge Wedge of the Leading Edge Slat - Inspections
Summary
Airworthiness Directive 93-14-19 issued by the U.S. Federal Aviation Administration addresses inspections of the trailing edge wedges of the leading edge slats on Boeing 767 series airplanes, line numbers 1 through 488. The directive mandates specific inspection methods and repair procedures to prevent separation of these components, ensuring continued airworthiness and safety of the affected aircraft.
What Changed
This directive introduces mandatory inspection requirements using visual, coin-tap, or ultrasonic methods for the trailing edge wedges of the leading edge slats on specified Boeing 767 airplanes. It also establishes repair protocols for detected disbonding, including time-limited and permanent repair methods, and provides conditions under which inspections may be discontinued or terminated by replacement with corrosion-resistant parts.
Why It Matters
Compliance with this Airworthiness Directive is critical for operators and maintenance organizations to prevent potential in-flight separation of slat components, which could compromise flight safety. It ensures that inspections and repairs are performed within specified intervals, helping maintenance teams plan and execute necessary actions to maintain regulatory compliance and aircraft integrity.
What To Do
Operators must perform initial inspections based on accumulated flight hours as specified, repeat inspections at intervals not exceeding 5,000 flight hours if no damage is found, and carry out required repairs promptly if disbonding is detected. Permanent repairs or replacement with corrosion-resistant slat wedges terminate inspection requirements. Requests for alternative compliance methods must be approved by the FAA Seattle Aircraft Certification Office.
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