AD NUMBER: 2019-05-08

PRODUCT: All Airbus SAS Model A318 and A319 series airplanes and all Model A320-211, A320-212, A320-214, A320-231, A320-232, A320-233, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, and A321-232 airplanes.

ACTION: Final Rule.

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2015-12-08, which applied to the aircraft listed above.

AD 2015-12-08 required an inspection to determine the batch number or installation date of the oxygen pipe assembly that is installed at the end of the right-hand crew distribution line, and replacement of the pipe if necessary.

This AD revises the applicability to include additional airplane models and additional pipes to be replaced if necessary. This AD was prompted by further investigation that determined that affected oxygen pipes may have been installed on more airplanes than initially identified.

DATES: This AD is effective April 16, 2019.

COST: The FAA estimates that this AD affects 50 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

• 2 work-hours × $85 per hour = $170 per airplane

On-Condition costs:

• 5 work-hours × $85 per hour = $425 per airplane.

FMI: AD