EMB ERJ 170/175 ER/LR
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Diverted; Flight Crew Landed As Precaution; General Maintenance Action
Aircraft
During cruise we noticed an initial EICAS message fuel feed one fault followed shortly thereafter by an SPDA fault cyan message. We ran the QRH for the messages and while looking through the MFD synoptic pages noticed we had a transient activation of both AC fuel pumps while both ejector pumps showed off and on intermittently. While scanning the other synoptic pages we; noticed a loss of data for the buss tie contactors as well as AC bus 2; DC bus 2; and TRU 2; along with the intermittent APU start bus data loss; all illustrated by yellow dashed lines. Also; both engine bleeds; both FCV's and both Recirc fans showed off. During this time we lost control of the aft cabin and cockpit temperatures and it became very warm in the cockpit and cabin. After discussing the compound failures with Maintenance Control and Dispatch; we elected to divert and land flaps full because we would not have reversers per the QRH. The landing was uneventful with normal braking and nose wheel steering. After landing; the EICAS displayed ENG 1; 2 NO DISPATCH and CRG FIRE PROT FAULT. The aircraft accepted ground power and we were able to shut the engines at the gate.
An EMB170 had multiple electrical anomalies in cruise flight. The Crew diverted to a suitable alternate airport.