4p vibration- S76
Hello all,
I would like to know what is the optional LVA (lateral vibration absorbers) function ? Are they an optional device, complementary to the VTA, to enhance the cabin vibration level or else?
We are experiencing, on one of our S76, a sudden increase of a 4P vibration, in consecutive sequences at around 135 Kts, mainly felt in the nose and cockpit section.
The track and balance are within limits, all other checks, inspections and settings have been tried without success.
I am curious to know if these LVA have something to do with this kind of vibration and if one of you ever experienced the same symptom.
Thanks
(sorry I couldnīt find the S76 thread back )