Fuselage - Pivot Bulkhead Forward Outer Chord - Repetitive Inspections
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must begin performing the required repetitive detailed and HFEC inspections of the STA 2370 pivot bulkhead forward outer chord and longeron fitting by June 30, 2023. They must also complete any necessary on-condition repairs or replacements as identified during inspections. Maintenance planners should account for updated labor and parts costs and prepare for potential extended work hours and tooling requirements.
Summary
Airworthiness Directive 2023-08-05 is a final rule issued by the Federal Aviation Administration addressing certain Boeing Company Model 777 airplanes. It mandates repetitive detailed and high frequency eddy current inspections of the pivot bulkhead forward outer chord at station 2370 and longeron fitting to detect cracking. The directive aims to prevent potential failure of the pivot bulkhead outer chord that could lead to loss of horizontal stabilizer control and airplane controllability.
What changed
This new airworthiness directive introduces mandatory repetitive inspections for cracks in the pivot bulkhead forward outer chord and longeron fitting on Boeing 777 airplanes. It requires operators to perform detailed and HFEC inspections and to carry out on-condition corrective actions if cracks are found. The directive also updates cost estimates and clarifies inspection requirements based on stakeholder feedback.
Why it matters
This directive is critical for aviation professionals as it addresses a structural safety concern that could compromise flight control. Operators and maintenance organizations must incorporate these inspections into their maintenance programs to ensure continued airworthiness and regulatory compliance. Failure to detect and repair cracks could result in severe safety risks and operational disruptions.
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