2024-23117. Airworthiness Directives; The Boeing Company Airplanes

Estimated Costs

Action	Labor cost	Parts cost	Cost per product	Cost on U.S. operators
External or internal inspections	Up to 21 work-hours × $85 per hour = $1,785 per inspection cycle	$0	$1,785 per inspection cycle	$485,520 per inspection cycle.

The FAA estimates the following costs to do any necessary on-condition actions that would be required based on the results of the inspection. The agency has no way of determining the number of aircraft that might need these actions:

On-Condition Costs

Action	Labor cost	Parts cost	Cost per product
Modification	420 work-hours × $85 per hour = $35,700	$40,620	$76,320.
Post-modification inspections	46 work-hours × $85 per hour = $3,910 per inspection cycle	0	$3,910 per inspection cycle.