Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Troubleshooting; Workload; Situational Awareness; Time Pressure
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Human Factors
I was pilot flying; my CA (Captain) was pilot monitoring. After receiving instructions from Approach to slow down to 170 KT until a 5-mile final; we got an IDG (Integrated Drive Generator) fault message. The CA pulled out the QRH and tried to address the issue. Shortly after; we got a multitude of issues. We notified ATC and we agreed that we would be safe to land. Slat flap fail; AT/AP (Autothrottles/Autopilot) disconnect; and more. Suddenly we lost all screens and everything went black. The RAT (Ram Air Turbine) deployed and I had to continue flying using the Captains PFD (Primary Flight Display). The CA [requested priority handling] and was cleared by Approach to land and swap to Tower.CA told the FAs (Flight Attendant) we were making a precautionary landing. Tower said they had the trucks rolling and landed as best we could normally. We dropped the flaps on schedule and noticed that the Slat Flap Disagree persisted. The CA then took over the controls with ample time before the 1;000 feet call and I swapped roles to PM. We notified ATC that we could not verify [if] the gear and flaps were down. Luckily; Tower notified us that another plane verified they were down. We landed uneventfully and taxied to the gate under our own power. No passengers were hurt; only the first row or two knew something was abnormal due to the RAT vibrations; the rest of the passengers were unaware of the incident. [The cause was an] internal electrical malfunction at a time of high workload. Potentially go-around and troubleshoot If issues happen on final.
EMB-175 First Officer reported an IDG failure during initial approach which led to a complete electrical failure and RAT deployment.