Fuselage - Wing Front Spar Structural Joints - Inspection
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Boeing 787-8 and 787-9 airplanes identified in Boeing Alert Requirements Bulletins B787-81205-SB530075-00 RB and B787-81205-SB530076-00 RB must perform repetitive high frequency eddy current and ultrasonic inspections of the front spar pickle fork and outer chord areas. Any detected cracking must be repaired following FAA-approved methods. The AD is effective January 10, 2022, and compliance must begin by that date.
Summary
Federal Register Volume 86, Number 231 (December 6, 2021) Final Rule titled 'Fuselage - Wing Front Spar Structural Joints - Inspection' is an FAA Airworthiness Directive (AD 2021-23-20) applicable to certain Boeing 787-8 and 787-9 airplanes. It addresses structural joint assembly issues that may reduce fatigue thresholds, requiring repetitive inspections and repairs of the front spar pickle fork and outer chord areas to maintain airworthiness.
What changed
This new AD introduces mandatory repetitive inspections for cracking in specific front spar structural joints of Boeing 787-8 and 787-9 aircraft. It requires repairs if cracking is found and clarifies applicability by referencing two Boeing Alert Requirements Bulletins. The AD also responds to operator comments but retains the original inspection thresholds and repair approval procedures.
Why it matters
This AD is critical for aviation professionals because it ensures early detection and repair of fatigue cracking that could compromise the primary structure of affected Boeing 787 aircraft. Compliance helps maintain structural integrity and flight safety, preventing potential in-service failures. Operators and maintenance teams must integrate these inspections into their maintenance programs to meet regulatory requirements and avoid operational disruptions.
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