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Tue, Jul 09, 2019

AD: Robinson Helicopter Company Helicopters

AD NUMBER: 2019-12-18

PRODUCT: Robinson Helicopter Company (Robinson) Model R44 II helicopters.

ACTION: Final rule; request for comments.

SUMMARY: This AD requires inspecting the engine air induction hose (hose) and replacing any hose that is not airworthy.

This AD was prompted by multiple reports of separation between the outer and inner layers of the hoses.

DATES: This AD is effective July 5, 2019. Comments must be received by August 19, 2019.

COST: The FAA estimates  that this AD may affect up to 88 helicopters of U.S. registry. Operators may incur the following costs in order to comply with this AD:

Labor costs are estimated at $85 per hour.

Inspecting the hose takes about 0.5 work-hour and replacing it takes about 0.5 work-hour. Parts cost are about $134 per hose for an estimated cost of $219 per helicopter.

According to Robinson's service information, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected individuals.

FMI: AD

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