The type in question is the S92A, and while it has already been posted elsewhere about problems with blade slap, RHS cockpit window acting as a sub woofer, noisy heater, vent and glass cockpit fans, no-one has previously posted the electrical noise present on the intercom, which Sikorsky are aware of but leave it to the operators to filter out. Unfortunately it is still present even with the use of ENC modules.
Sikorsky just ignoring a problem... never!
After all:
Sikorsky has a safety management program integrated into its operation. This program utilizes several processes to identify hazards and manage risk from preliminary helicopter design, field operations, and the continuing airworthiness program. Once potential hazards are identified, the level of risk is assessed utilizing processes such as: functional hazard assessments; fault tree analysis; failure mode and effects analysis; and common cause analysis.
Sikorsky has many ways of detecting hazards such as operator reports or deficiency trend monitoring. One of Sikorsky's primary sources of hazard identification is its network of field service representatives. Throughout a helicopter's life cycle, Sikorsky assigns a Lead System Safety Engineer who is responsible for providing guidance for safe designs, identifying potential safety hazards, conducting risk assessments, tracking safety hazards, and verifying that risk has been eliminated or properly mitigated. When a mitigation plan is arrived at and a corrective action is put in place, Sikorsky closes the safety process loop by continuing to monitor the outcome of the corrective action. Mitigation decisions for higher-level potential safety hazards are reviewed by an internal Senior Safety Council at Sikorsky.
Transportation Safety Board of Canada - AVIATION REPORTS - 2007 - A07P0123
So I wonder what the Senior Safety Council has to say about this hazard.