Boeing 737s must check landing gear for manufacturing flaws, replace if needed

The US aviation regulator is ordering inspections for a specific manufacturing flaw in the landing gear of certain Boeing 737 airplanes. If the flaw is found, the affected part must be replaced.

A manufacturing defect in a critical part like landing gear can lead to catastrophic failures. This order means airlines must now actively check for a problem that was previously unknown or unaddressed, shifting the burden from potential future accident investigations to proactive maintenance. It forces a specific, measurable action to prevent a known risk.