Comment from Rotor Blade Repair, Inc.

Summary: Rotor Blade Repair, Inc. and 5 States Helicopters, Inc. oppose the proposed airworthiness directive, arguing that it incorrectly conflates different type certificates and improperly restricts maintenance to specific Sikorsky-authorized facilities. They request the withdrawal of the proposal, citing concerns over configuration control, regulatory non-compliance, and the potential for maintenance errors.