PPRuNe Forums - View Single Post - Weststar AW139 Hyd failure and RH MLG Collapse
Old 30th December 2012 | 14:00
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rapman
 
Joined: Jul 2006
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From: timbucktoo
Unfortunately the hydraulic pressure hoses, especially on the #2 system do fail suddenly! Asked any experienced operator running a high time machine

Whilst the hoses are rated at 6000psi, they have a design flaw which causes them to fracture and burst where the union is Joined to hose. These hoses are covered in rubber so cannot be inspected for cracks/fractures. At 3000 psi these hoses let go without warning!

Agusta are fully aware of this problem as Operators have reported multiple failures
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