AD NUMBER: 2019-16-08

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

ACTION: Final Rule.

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-22-13, which applied to the aircraft listed above.

AD 2018-22-13 required revising the existing airplane flight manual (AFM) to provide the flightcrew with updated procedures related to inboard aileron fault operations.

This AD continues to require that AFM revision, and also requires modification of the electronic centralized aircraft monitoring (ECAM) procedures by installing an Airbus temporary quick change (ATQC) and activating an ECAM temporary change.

This AD was prompted by a technical issue detected on the inboard aileron electrohydrostatic actuators that caused potential erroneous monitoring of those actuators.

DATES: This AD is effective November 5, 2019.

COST: The FAA estimates that this AD affects 11 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

• Retained actions from AD 2018-22-13: 1 work-hour × $85 per hour = $85 per airplane
• New actions: 4 work-hours × $85 per hour = $340 per airplane

FMI: AD