Regional jets need new safety checks for parts that wear out faster than expected

US aviation regulators want to update maintenance rules for several models of regional jets. This means airlines will need to inspect certain parts more often or replace them sooner.

Aircraft parts wear out. Sometimes, they wear out faster than the original design predicted. When that happens, regulators step in to update the maintenance schedule. This proposed rule means airlines operating these specific regional jets will have higher maintenance costs and potentially more downtime for inspections.