What was found
During cruise of the flight from SAV to ORD, the crew reported that the L/H engine 14th stage duct EICAS message illuminated. The crew accomplished the QRH procedures and diverted to CAE where the aircraft was landed without incident. Maintenance personnel found that the insulation had failed on the L/H engine 14th stage bleed pylon duct. The duct was removed and replaced. Engine run operational checks were satisfactory and the aircraft was returned to service.