AD NUMBER: 2018-23-16

PRODUCT: Pacific Aerospace Limited Model 750XL airplanes.

ACTION: Final Rule.

SUMMARY: This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.

The MCAI describes the unsafe condition as insufficient clearance between the pitot tubes and the primary support at the flame arrester intersection.

DATES: This AD is effective January 10, 2019.

COST: The FAA estimates that this AD will affect 22 products of U.S. registry. Operators may incur the following costs in order to comply with this AD:

The FAA estimates that it would take about 1 work-hour per product to comply with the pitot static tubing inspection and installation of support clamps and spiral wrap required by this AD.
The average labor rate is $85 per work-hour. Required parts would cost about $25 per product.

• Based on these figures, the estimated cost of the AD on U.S. operators is $110 per product.
• In addition, any necessary follow-on actions to replace damaged tubing would take about 1 work-hour and require parts costing $25, for a cost of $110 per product.

FMI: AD