AD NUMBER: 2018-23-05

PRODUCT: Certain Airbus SAS Model A350-941 and -1041 airplanes.

ACTION: Final Rule; request for comments.

SUMMARY: This AD was prompted by a report of a close gap between the wing lower cover (WLC) and wing rib feet.

This AD requires revising the operator's minimum equipment list (MEL) to change certain MEL items.

This AD also requires an inspection for discrepancies and structural damage of certain wing rib foot locations, and related investigative and corrective actions if necessary.

DATES: This AD becomes effective November 23, 2018. Comments must be received by December 24, 2018.

COST: The FAA estimates that this AD affects 1 airplane of U.S. registry. Operators may incur the following costs in order to comply with this AD:

• 60 work-hours × $85 per hour = $5,100 per aircraft.

The FAA has received no definitive data that would enable us to provide cost estimates for oncondition repair of structural damage specified in this AD. The agency estimates the following costs to do any necessary on-condition actions that would be required to address other discrepancies based on the results of any required actions.

• 10 work-hours × $85 per hour = $850 per aircraft.

FMI: AD