Silencers

I will contact Kearney aero acoustics now„ Photo attached,.

Silencers (two total) for air distribution was discussed with gulfstream tec=ops during early trouble shooting, silencers prevent whistling / surges of a=r coming from Alr cycle machines into fuselage, the cockpit silencer is l=cated under fwd club seating, and cabin silencer I located under galley flo=r, we have shut off one and both air cycle machines during trouble shootin= to Rule these components,.

I will inspect silencers and get replacement price for you, anything is poss=ble