2025-00144. Airworthiness Directives; The Boeing Company Airplanes

Action	Labor cost	Parts cost	Cost per product	Cost on U.S. operators
Inspection or maintenance records check for affected part numbers	Up to 3 work-hours × $85 per hour = $255	$0	Up to $255	Up to $146,370.

The FAA estimates the following costs to do any necessary replacements that would be required based on the results of the inspection or maintenance records check. The agency has no way of determining the number of aircraft that might need this replacement: ( print page 1370)

On-Condition Costs

Action	Labor cost	Parts cost	Cost per product
Replacement of MLG outer cylinder (83 affected parts)	189 work-hours * × $85 per hour = $16,065	* $500,000	$516,065
* Task work-hours and parts cost are based on one MLG outer cylinder replacement.