Thu, Feb 01, 2018

AD: Agusta S.p.A. Helicopters

AD NUMBER: 2018-03-01

PRODUCT: Agusta S.p.A. (Agusta) Model AB139 and AW139 helicopters.

ACTION: Final rule; request for comments.

SUMMARY: This AD requires inspecting the main rotor blade (MRB) tip cap for disbonding.

This AD is prompted by a report of the in-flight loss of an MRB tip cap.

DATES: This AD becomes effective February 14, 2018. Comments on this AD must be received by April 2, 2018.

COST: The FAA estimates that this AD affects four helicopters of U.S. Registry. At an average labor rate of $85 per work-hour, operators may incur the following costs in order to comply with this AD:

Tap inspecting the MRB tip caps will require 1 work-hour, for a cost per helicopter of $85. Replacing one MRB will require 4 work-hours, and $141,725 for required parts. Thus, the FAA estimates a total cost of $568,345 per helicopter and $2,273,380 for the U.S. fleet to comply with this AD.
According to Leonardo Helicopters' 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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AD: Agusta S.p.A. Helicopters

AD NUMBER: 2018-03-01

FMI: AD

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