AD NUMBER: 2019-23-03

PRODUCT: Dassault Aviation Model FALCON 900EX airplanes.

ACTION: Final rule

SUMMARY: The FAA is superseding Airworthiness Directives (AD) 2017-19-14 and AD 2014-16- 27, which apply to certain Dassault Aviation Model FALCON 900EX airplanes.

Those ADs require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and/or airworthiness limitations.

Since the FAA issued AD 2017-19-14 and AD 2014-16-27, the FAA determined that new or more restrictive airworthiness limitations are necessary.

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

DATES: This AD is effective January 13, 2020.

COST: The FAA estimates that this AD affects 79 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

The FAA estimates the total cost per operator for the retained actions from AD 2017-19-14 to be $7,650 (90 work-hours x $85 per work-hour).

The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 work-hours per operator, although the agency recognizes that 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 FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate. The FAA estimates the total cost per operator for the new actions to be $7,650 (90 work-hours x $85 per work-hour).

FMI: AD