“The FAA has found that the risk to the flying public justifies forgoing notice and comment prior to adoption of this rule because cracking in the upper power lever leads to failure of the upper power lever, which could result in loss of engine thrust control and reduced control of the airplane...” Source: Part of a recent AD issued by Uncle Sam following another Cirrus blunder, after which the agency performed several additional inspections that revealed cracks in the upper power levers of 26 more aircraft. For safety purposes, the FAA skipped over the comment period typically left open before enforcing the directive.
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