Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 190; Flight Crew Total 1133; Flight Crew Type 81
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Departure Airport; Flight Crew Diverted
Aircraft
During cruising flight over ZZZZZ Intersection on the way back to ZZZ (22 miles west ZZZ VOR on the radial 253) [We experienced] total electrical failure. (Emergency checklist [was] followed with no success).Comm 1; NAV 1 and GPS lost. Used comm 2 as alternative to transmit the last communication to approachApproach cleared me to the B airspace.Lost comm 2 (only receiving was reliable and could not transmit); NAV 2; PFD and MFD lost too. Only transponder was totally functional. Approach request to acknowledge instructions via ident.10 nm north west of ZZZ1; lost engine indications.Engines were still running.Used transponder code 7700.Approach cleared me to ZZZ1 and maneuver as practical to descent.Runway XX in use and cleared to land. (Aircraft refueled full tanks at ZZZ2) Endurance with full tanks: 5.5 hours approximately Flight time after refueling when emergency occurred: 2.1 hrs.
[Report narrative contained no additional information.]
BE-76 instructor and student pilots reported experiencing total electrical failure during cruise.