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The Federal Aviation Administration (FAA) is issuing a final rule to update airworthiness directives for Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This rule replaces a previous directive due to the discovery of a new airworthiness limitation, which involves regular inspections and maintenance to address potential sand contamination and corrosion in the elevator torque tube bearings. These measures are intended to prevent possible binding or seizure of these components, which could lead to a loss of pitch control. The rule also provides guidelines for compliance and specifies that existing maintenance programs must be updated by March 11, 2025, to incorporate these new requirements.

The Federal Aviation Administration (FAA) has issued a final rule for a new airworthiness directive (AD) affecting all Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was introduced because two engine fan blade-out events led to engine parts separating from the planes, causing safety issues. The directive requires airlines to replace certain parts on the planes and update maintenance programs to ensure safety. This rule, effective April 8, 2025, aims to prevent future incidents that could lead to loss of control or rapid decompression.