AD NUMBER: 2017-14-03

PRODUCT: Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters

ACTION: Final Rule.

SUMMARY: This AD requires an inspection and reduces the retirement lives of certain landing gear components.

This AD is prompted by a revised analysis of the fatigue life of the landing gear.

DATES: This AD becomes effective August 11, 2017.

COST: The FAA estimates  that this AD will affect 80 helicopters of U.S. Registry. They estimate that operators may incur the following costs in order to comply with this AD.

At an average labor rate of $85 per hour:

• Replacing a wheel axle P/N 2392-2334-001 will require 2 work-hours and required parts cost $22,000, for a cost per helicopter of $22,170.
• Replacing a MLG or NLG threaded hinge pin P/N 2392-2311-003 will require 1 work-hour and required parts cost $3,800, for a cost per helicopter of $3,885.
• Replacing a NLG cylinder P/N 2392-4006-005 will require 1 work-hour and required parts cost $27,200, for a cost per helicopter of $27,285.
• Replacing a NLG hinge pin P/N 2392-4312-003 will require 1 work-hour and required parts cost $4,400, for a cost per helicopter of $4,485.
• Replacing a landing gear actuator rod end P/N 2392-0876-901 will require 1 work-hour and required parts cost $900, for a cost per helicopter of $985.
• Inspecting the NLG airframe fitting assembly P/N 92209-01101-041 will require 8 workhours, and required parts cost is minimal, for a cost of $680 per helicopter and $54,400 for the U.S. fleet.
• If required, replacing a NLG actuator fitting P/N 92209-01101-101 would require 70 workhours, and required parts cost $10,000, for a cost per helicopter of $15,950.

FMI: AD