EMB ERJ 145 ER/LR
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Returned To Departure Airport; Flight Crew Landed As Precaution; General Maintenance Action
Aircraft
Air return after CA (Captain's) MFD; PFD and EICAS went black during takeoff. Autopilot disengaged. All came back approximately 2-3 seconds later. Both CA and FO (First Officer) speeds dashed out. Then FO comms were lost and he had a stuck mike transmitting on departure frequency. FO couldn't transmit nor could he hear me speak. Requested a return to (departure airport); asked ATC to notify company; notified FA (Flight Attendant) and passengers. Uneventful return. Post Flt IC-600 Bus Failure error message noted. Subsequently IC-600 was replaced.
EMB-145 Captain reported returning to departure airport after the loss of several systems related to a bus failure.