I red this article last week
New AW139 tailboom fixture and spare tailboom increase Heli-One's AW139 service capabilities | Shephard Group
Heli-One has enhanced its service capabilities for AgustaWestland AW139 helicopters with the addition of the first OEM AW139 tailboom fixture in North America along with a spare tailboom at its state-of-the-art facility in Delta, British Columbia, Canada.
Heli-One is owned by CHC Helicopter, the world's highest time operator of the industry leading AW139. The company has been approved to provide overhaul service and support to AW139 operators in Europe, North America and Australasia since February 2009.
"We're excited to increase our service capabilities for this superb aircraft," said Neil Calvert, President, Heli-One. "With a worldwide fleet approaching 300 aircraft and growing, the AW139 plays a key role for operators worldwide, and we're committed to providing them with exceptional service and customer care. This new fixture and tailboom will minimize their downtime and let them continue operations virtually uninterrupted."
As an approved AW139 service centre, Heli-One is supported by AgustaWestland in all aspects of technical support for this product.
Used for a wide range of applications including VIP transport, emergency medical service, search-and-rescue, offshore OGP support, fire fighting, law enforcement, paramilitary and military roles, the AgustaWestland AW139 is a 15-seat medium sized twin-turbine helicopter used by government, military and civilian operators in 32 countries worldwide.
so it seems that AgustaWestland is expanding the service web in order to reach all the Customer in the world and support them on this problem.
In the internet I found a news about some AW139 that must check the tail boom every 5 fh to avoid problems (I think delamination or the same of Doha AW139)
this is the helicopters involved