Stabilizers - Hybrid Material Elevator Balance Weight - Inspection / Replacement
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AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Mooney M20 models must inspect their airplanes for the hybrid elevator balance weight P/N 430018-1 by February 13, 2023. If found, they must inspect the balance weight for corrosion and cracks and either replace it with the approved lead balance weight or perform repetitive inspections as specified. Installation of the hybrid balance weight on any airplane is prohibited going forward. Comments on the directive must be submitted by March 13, 2023.
Summary
The Federal Aviation Administration's Airworthiness Directive 2023-02-04 addresses certain Mooney International Corporation Model M20C, M20D, M20E, M20F, and M20G airplanes. It focuses on the inspection and replacement of hybrid material elevator balance weights, specifically part number 430018-1, due to reported cracking and corrosion issues. This directive aims to ensure continued airworthiness and safety of the affected aircraft.
What changed
This new airworthiness directive requires operators to inspect for the presence of the hybrid elevator balance weight P/N 430018-1 and, if installed, to inspect for corrosion and cracking. Depending on inspection results, operators must either replace the hybrid balance weight with a non-hybrid lead balance weight P/N 430016-7 or perform repetitive inspections. The directive also prohibits the installation of the affected hybrid elevator balance weight on any airplane.
Why it matters
This directive is critical for aviation professionals because corrosion and cracking in the hybrid elevator balance weight can lead to partial or total separation during flight, causing elevator flutter and potential loss of airplane control. Compliance ensures the structural integrity of the elevator system, reducing safety risks and avoiding costly in-flight failures. Maintenance and compliance teams must prioritize these inspections to maintain regulatory compliance and flight safety.
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