AD NUMBER: AD 2019-02-03

PRODUCT: All The Boeing Company Model 787-8, 787-9, and 787-10 airplanes.

ACTION: Final rule; request for comments.

SUMMARY:  This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations.

This AD was prompted by reports of warpage of internal engine fire handle components, which can cause binding and prevent proper operation.

DATES: This AD is effective February 22, 2019. Comments must be received by March 25, 2019.

COST: The FAA estimates that this AD affects 120 airplanes of U.S. registry.  Operators may incur the following costs in order to comply with this AD:

• The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 work-hours per operator, although this number may vary from operator to operator. In the past, the FAA has estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the agency have determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, the estimated total cost per operator to be $7,650 (90 work-hours x $85 per work-hour).

FMI: AD